Math Homework Answers - Recent questions tagged solving equations
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Powered by Question2AnswerWhat percent of 64 is 48
http://www.mathhomeworkanswers.org/235559/what-percent-of-64-is-48
7th grade math worksheetOther Math Topicshttp://www.mathhomeworkanswers.org/235559/what-percent-of-64-is-48Tue, 10 Jan 2017 02:56:31 +0000a local readers club has a set of 12 hardback books, a set of 18 paperbacks
http://www.mathhomeworkanswers.org/235458/local-readers-club-has-set-hardback-books-set-of-paperbacks
a local readers club has a set of 12 hardback books, a set of 18 paperbacks, and a set of 36 magazines. each set can be divided equally among the club members, what is the greatest possible number of club membersOther Math Topicshttp://www.mathhomeworkanswers.org/235458/local-readers-club-has-set-hardback-books-set-of-paperbacksSun, 08 Jan 2017 01:35:33 +0000Anna spent 3 hours in her garden planting 6 rosebushes
http://www.mathhomeworkanswers.org/235034/anna-spent-3-hours-in-her-garden-planting-6-rosebushes
<p>Anna spent 3 hours in her garden planting 6 rosebushes. To plant a rosebush, she first dug a hole then refilled the hole with the root ball, dirt, and compost. She spent twice as long digging the hole for each plant as she did refilling it. Which of the following could be used to find the number of minutes, <em>m</em>, Anna spent digging each hole?</p>
<p>The answer is 6m + 6(m/2) = 180</p>
<p> </p>
<p>I chose 6m + 6(2m) = 180 and I am not exactly sure why I am wrong. Doesn't 2m represent her taking twice as long to dig than refill? </p>
<p>I'm not sure why this problem is tripping me up, but maybe someone could explain it to me?</p>
<p>Thanks a lot.</p>Word Problem Answershttp://www.mathhomeworkanswers.org/235034/anna-spent-3-hours-in-her-garden-planting-6-rosebushesTue, 03 Jan 2017 20:12:56 +0000Determine the weight of a mans legs in terms of the scale readings and the dimensions d and L?
http://www.mathhomeworkanswers.org/234136/determine-weight-mans-legs-terms-scale-readings-dimensions
The experiment is useful for estimating the weight of a man's legs. When the man is lying flat on a flat board with his legs flat to the board, the board is of length L between points A and B, a scale at point B on the right side reads S1.At point A on the left side of the board lies on a roller and is level between points A and B.<br />
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Also, the man when lying down on the board his head is towards point A and the legs towards point B.<br />
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By estimation it is determined that the center of gravity of the legs is at G, just above the knee area. When his legs are brought to a vertical position, the center of gravity is diplaced horizontally to the left a distance of d, which gives a new scale reading of S2.<br />
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Please answer the question above.<br />
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The answer is W = (L(S1-S2))/d ; please show how this answer was derivedby using the equations of equilibrium:<br />
<br />
Sum of the forces in the X-direction = 0<br />
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Sum of the forces in the Y direction = 0<br />
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Sum of the moments about a point = 0<br />
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Ignore the weight of the board and possibly sum the moments about point A.<br />
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Please show all steps to show this derivation, ThanksCalculus Answershttp://www.mathhomeworkanswers.org/234136/determine-weight-mans-legs-terms-scale-readings-dimensionsSun, 18 Dec 2016 23:08:24 +0000find f(-1)
http://www.mathhomeworkanswers.org/233862/find-f-1
if f(x)=-2x³+5x²-6x+7 find f(-1)Calculus Answershttp://www.mathhomeworkanswers.org/233862/find-f-1Thu, 15 Dec 2016 03:38:06 +0000indicated operation solve ( 7,-9)+(3,5)
http://www.mathhomeworkanswers.org/232860/indicated-operation-solve-7-9-3-5
indicated operationCalculus Answershttp://www.mathhomeworkanswers.org/232860/indicated-operation-solve-7-9-3-5Wed, 30 Nov 2016 04:57:48 +00002sinQ + √2 =0
http://www.mathhomeworkanswers.org/232738/2sinq-%E2%88%9A2-0
Sovle the equation for Q it 0°Trigonometry Answershttp://www.mathhomeworkanswers.org/232738/2sinq-%E2%88%9A2-0Mon, 28 Nov 2016 06:12:07 +0000flow rate of fluid per hour having pressure of 10 bar in 2 inch pipe
http://www.mathhomeworkanswers.org/232568/flow-rate-fluid-per-hour-having-pressure-of-10-bar-in-inch-pipe
flow rate of fluid per hour having pressure of 10 bar in 2 inch pipeOther Math Topicshttp://www.mathhomeworkanswers.org/232568/flow-rate-fluid-per-hour-having-pressure-of-10-bar-in-inch-pipeFri, 25 Nov 2016 13:12:39 +0000Simplify the expression below
http://www.mathhomeworkanswers.org/232488/simplify-the-expression-below
X-1/1 - 2x+1/3 simplify the expressionOther Math Topicshttp://www.mathhomeworkanswers.org/232488/simplify-the-expression-belowThu, 24 Nov 2016 22:53:34 +00002x+3y-x+6x=?
http://www.mathhomeworkanswers.org/232393/2x-3y-x-6x
Adding and subracting between the numbers. Variables are used as well.Algebra 1 Answershttp://www.mathhomeworkanswers.org/232393/2x-3y-x-6xTue, 22 Nov 2016 17:23:04 +0000Y+1=3/4(x+2)
http://www.mathhomeworkanswers.org/231787/y-1-3-4-x-2
How do you get this into slope intercept formCalculus Answershttp://www.mathhomeworkanswers.org/231787/y-1-3-4-x-2Thu, 17 Nov 2016 01:51:34 +0000how to solve 8(x-3) - 6(x-2) = 2(x+2) - 8(5-x)
http://www.mathhomeworkanswers.org/231765/how-to-solve-8-x-3-6-x-2-2-x-2-8-5-x
solve simple equationsOther Math Topicshttp://www.mathhomeworkanswers.org/231765/how-to-solve-8-x-3-6-x-2-2-x-2-8-5-xWed, 16 Nov 2016 17:00:55 +000060+60x0+1=
http://www.mathhomeworkanswers.org/231703/60-60x0-1
The correct solution to the problem.Algebra 1 Answershttp://www.mathhomeworkanswers.org/231703/60-60x0-1Wed, 16 Nov 2016 05:01:46 +0000solve the equation 5y – 3 = 1
http://www.mathhomeworkanswers.org/231644/solve-the-equation-5y-3-1
5y – 3 = 1 anser nowOther Math Topicshttp://www.mathhomeworkanswers.org/231644/solve-the-equation-5y-3-1Tue, 15 Nov 2016 16:24:17 +0000aa66c+a7cc5=7b887 ,find a,b and C?
http://www.mathhomeworkanswers.org/231456/aa66c-a7cc5-7b887-find-a-b-and-c
find a,b and C ?Algebra 1 Answershttp://www.mathhomeworkanswers.org/231456/aa66c-a7cc5-7b887-find-a-b-and-cSun, 13 Nov 2016 09:18:39 +0000find two integers whose difference is 4 and whose squares differ by 72
http://www.mathhomeworkanswers.org/230989/find-two-integers-whose-difference-and-whose-squares-differ
<p style="text-align:center">QUADRATIC EQUATIONS</p>Algebra 1 Answershttp://www.mathhomeworkanswers.org/230989/find-two-integers-whose-difference-and-whose-squares-differTue, 08 Nov 2016 15:30:39 +0000the difference of a number and its reciprocal is 15/4. find the number
http://www.mathhomeworkanswers.org/230980/the-difference-number-and-its-reciprocal-15-find-the-number
QUADRATIC EQUATIONSOther Math Topicshttp://www.mathhomeworkanswers.org/230980/the-difference-number-and-its-reciprocal-15-find-the-numberTue, 08 Nov 2016 14:47:13 +0000what is the ratio of winning 356:1000
http://www.mathhomeworkanswers.org/230646/what-is-the-ratio-of-winning-356-1000
What is the ration of winning if your sell 1,000 calendars and there are 356 prizesAlgebra 1 Answershttp://www.mathhomeworkanswers.org/230646/what-is-the-ratio-of-winning-356-1000Sat, 05 Nov 2016 12:08:32 +0000ahmad added 5 in twice of number. then he subtracted half of the number from the result. finally he got the answer 8 . find the number.
http://www.mathhomeworkanswers.org/230330/added-number-subtracted-number-result-finally-answer-number
Solving simultaneous linear equationOther Math Topicshttp://www.mathhomeworkanswers.org/230330/added-number-subtracted-number-result-finally-answer-numberMon, 31 Oct 2016 02:16:10 +0000solve the differential equation for bernoulli principle.
http://www.mathhomeworkanswers.org/230268/solve-the-differential-equation-for-bernoulli-principle
the bernoulli equation can be solved as a linear differentialCalculus Answershttp://www.mathhomeworkanswers.org/230268/solve-the-differential-equation-for-bernoulli-principleSat, 29 Oct 2016 06:54:23 +00004x+2x+18=5x+x+18
http://www.mathhomeworkanswers.org/229666/4x-2x-18-5x-x-18
4x+2x+18=5x+x+18<br />
<br />
is the one solution, is the equation always true, or is it never true.<br />
<br />
Also can you solve the equation plsAlgebra 1 Answershttp://www.mathhomeworkanswers.org/229666/4x-2x-18-5x-x-18Mon, 24 Oct 2016 20:33:14 +0000(4-5y)-2(3.5y-8)
http://www.mathhomeworkanswers.org/229153/4-5y-2-3-5y-8
<p><span style="background-color:#DDA0DD">PLEASE HELP ME OR ELSE I'LL FAIL!!!!!</span></p>Algebra 2 Answershttp://www.mathhomeworkanswers.org/229153/4-5y-2-3-5y-8Wed, 19 Oct 2016 23:17:33 +0000Resolve the following Confidential Intervals questions.
http://www.mathhomeworkanswers.org/229021/resolve-the-following-confidential-intervals-questions
1. Calculate the margin of error if the necessary requirements are satisfied. Please assume the original population is normally distributed: a. Confidence Level = 95%, n = 78, σ = 6; E = ?<br />
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2. A concert promoter wants to estimate the mean age of concertgoers who live in the Chicago area. In a random sample of 70 concertgoers, the mean age is found to be 27.8 years. From past studies, the standard deviation is known to be 1.6 years. Construct a 99% interval for the population<br />
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3. You want to conduct a study to determine if people would like to purchase dinner vouchers with their tickets to a particular sporting event. You decide to use a survey. How many people should you ask to complete the survey if you want to be 90% confident that the sample mean is within 3 points from the population mean? From previous studies, the standard deviation is 95. <br />
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4. Construct the indicated confidence interval for the population mean μ using a t-distribution: C = 99%, m = 46.9, s = 7, n =9<br />
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5. A survey of 1500 adults found that 445 of them own a pet cat. Construct a 95% confidence interval of the true proportion of adults who own a cat.<br />
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6. A researcher wants to estimate, with a 95% confidence level the proportion of people who own 3 or more cars. A previous study showed that 23% of people asked owned 3 or more cars. The researcher wants to be accurate within 4%. Find the number of people he needs to ask to meet these criteria.Statistics Answershttp://www.mathhomeworkanswers.org/229021/resolve-the-following-confidential-intervals-questionsTue, 18 Oct 2016 23:04:27 +00005(q+p)-4+8p What is q-
http://www.mathhomeworkanswers.org/228812/5-q-p-4-8p-what-is-q
Need to know this by tomorrow. Also need someone to explain how to work it out.Algebra 1 Answershttp://www.mathhomeworkanswers.org/228812/5-q-p-4-8p-what-is-qSun, 16 Oct 2016 20:57:58 +0000Find x from the above data
http://www.mathhomeworkanswers.org/228461/find-x-from-the-above-data
2x articles cost Rs(5x+54) and (x+2) articles costs Rs(10x-4); find x.<br />
<br />
I can't form an equation as I cannot see any relation between the two informations provided above. Please help me out.Algebra 1 Answershttp://www.mathhomeworkanswers.org/228461/find-x-from-the-above-dataWed, 12 Oct 2016 17:00:13 +0000find the area of PMP'N
http://www.mathhomeworkanswers.org/228302/find-the-area-of-pmpn
The point P(5,3) was rerflected in the origin to get the image P'.<br />
<br />
a. write the coordinates of P'.<br />
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b.If M is the foot of the perpendicular from P to the x-axis , find the coordinates of N<br />
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c.If N is the foot of the perpendicular from P' to the x-axis , find the coordinates of N<br />
<br />
d. Name the figure PMP'N<br />
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e. Find the area of the figure PMP'N .Algebra 2 Answershttp://www.mathhomeworkanswers.org/228302/find-the-area-of-pmpnTue, 11 Oct 2016 13:01:28 +0000given that x to the power of 2 +y to the power of 2 =697 and xy=336, find the value of (x-y)power of 2
http://www.mathhomeworkanswers.org/227667/given-that-the-power-the-power-697-and-336-find-the-value-power
Find the valueOther Math Topicshttp://www.mathhomeworkanswers.org/227667/given-that-the-power-the-power-697-and-336-find-the-value-powerSun, 02 Oct 2016 16:09:46 +0000how is Coefficient of Determination/proportionate reduction in error calculated
http://www.mathhomeworkanswers.org/227023/coefficient-determination-proportionate-reduction-calculated
Coefficient of Determination/proportionate reduction in errorStatistics Answershttp://www.mathhomeworkanswers.org/227023/coefficient-determination-proportionate-reduction-calculatedFri, 23 Sep 2016 01:10:42 +00009-2z|>|7z|
http://www.mathhomeworkanswers.org/226512/9-2z-7z
Its a calculus problem a question of inequality please solve it out.Calculus Answershttp://www.mathhomeworkanswers.org/226512/9-2z-7zSun, 18 Sep 2016 23:34:12 +0000how to solve 2x + 3y = -6 and 4x - y = 16
http://www.mathhomeworkanswers.org/226625/how-to-solve-2x-3y-6-and-4x-y-16
How to solve itOther Math Topicshttp://www.mathhomeworkanswers.org/226625/how-to-solve-2x-3y-6-and-4x-y-16Sun, 18 Sep 2016 12:52:00 +0000How do i solve this equation; a+b=c?
http://www.mathhomeworkanswers.org/226363/how-do-i-solve-this-equation-a-b-c
Sally and Brad have 20 dollars together, Brad and Amy have 27 dollars together and Amy and Sally have 25 dollars together. How much does each person have?Algebra 1 Answershttp://www.mathhomeworkanswers.org/226363/how-do-i-solve-this-equation-a-b-cTue, 13 Sep 2016 22:04:52 +0000determine the ratio of egg weight to mother's weight for each bird. Write the ratios as decimals
http://www.mathhomeworkanswers.org/226182/determine-ratio-weight-mothers-weight-write-ratios-decimals
Pigeon mother's weight 10 egg weight 0.75<br />
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Chicken mothers weight 80 egg weight 2<br />
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Swan mothers weight 352 egg weight 11<br />
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Robin mothers weight 2.5 egg weight 0.1Other Math Topicshttp://www.mathhomeworkanswers.org/226182/determine-ratio-weight-mothers-weight-write-ratios-decimalsMon, 12 Sep 2016 11:09:30 +0000it cost $5.00 to print 20 digital photos, at this rate, what is the cost to print 50 digital photos?
http://www.mathhomeworkanswers.org/225568/print-digital-photos-this-rate-what-cost-print-digital-photos
No more informationAlgebra 1 Answershttp://www.mathhomeworkanswers.org/225568/print-digital-photos-this-rate-what-cost-print-digital-photosThu, 01 Sep 2016 02:06:27 +0000ABCD is a parallelogram. EF has been drawn parallel to BD such that it intersects the side AB at E and the side AD at F.
http://www.mathhomeworkanswers.org/225327/abcd-parallelogram-drawn-parallel-such-intersects-side-side
ABCD is a parallelogram. EF has been drawn parallel to BD such that it intersects the side AB at E and the side AD at F.<br />
<br />
Prove that,<br />
<br />
(i) the triangles BEC and DFC are equal in area.<br />
<br />
(ii) the triangles AEC and AFC are equal in areaGeometry Answershttp://www.mathhomeworkanswers.org/225327/abcd-parallelogram-drawn-parallel-such-intersects-side-sideSat, 27 Aug 2016 18:56:25 +0000Write an equation to find her total sales if her total earnings for the last two weeks were 500
http://www.mathhomeworkanswers.org/225159/write-equation-find-total-sales-total-earnings-last-weeks-were
Writing expressions and equationsAlgebra 1 Answershttp://www.mathhomeworkanswers.org/225159/write-equation-find-total-sales-total-earnings-last-weeks-wereThu, 25 Aug 2016 14:03:00 +0000What is 712+1/10
http://www.mathhomeworkanswers.org/225107/what-is-712-1-10
What is 7/12+1/10Algebra 1 Answershttp://www.mathhomeworkanswers.org/225107/what-is-712-1-10Wed, 24 Aug 2016 04:59:15 +0000find the reciprocal of each number?
http://www.mathhomeworkanswers.org/224977/find-the-reciprocal-of-each-number
find the reciprocal of each number<br />
<br />
5/8Other Math Topicshttp://www.mathhomeworkanswers.org/224977/find-the-reciprocal-of-each-numberMon, 15 Aug 2016 15:17:16 +0000how do i solve xy=21
http://www.mathhomeworkanswers.org/224919/how-do-i-solve-xy-21
How do I solve itWord Problem Answershttp://www.mathhomeworkanswers.org/224919/how-do-i-solve-xy-21Mon, 08 Aug 2016 19:32:56 +0000Write down this set in predicative form {2/3, 4/6, 6/9, 8/12, 10/15}
http://www.mathhomeworkanswers.org/224827/write-down-this-set-in-predicative-form-2-3-4-6-6-9-8-12-10-15
Predicate formAlgebra 1 Answershttp://www.mathhomeworkanswers.org/224827/write-down-this-set-in-predicative-form-2-3-4-6-6-9-8-12-10-15Sat, 30 Jul 2016 01:33:15 +0000If Answer is 10225 & VAT @12.5% then what is the basic amount
http://www.mathhomeworkanswers.org/224715/if-answer-is-10225-%26-vat-%4012-5%25-then-what-is-the-basic-amount
If Answer is 10225 & VAT @12.5% then what is the basic amount<br />
<br />
what is the answerCalculus Answershttp://www.mathhomeworkanswers.org/224715/if-answer-is-10225-%26-vat-%4012-5%25-then-what-is-the-basic-amountThu, 21 Jul 2016 10:06:32 +0000Sq. rt. a + sq. rt. b = 2 and sq. rt. a - sq. rt. b = 3 What is (a + b)?
http://www.mathhomeworkanswers.org/224710/sq-rt-a-sq-rt-b-2-and-sq-rt-a-sq-rt-b-3-what-is-a-b
Sq. rt. a + sq. rt. b = 2 and sq. rt. a - sq. rt. b = 3 What is (a + b)?Algebra 1 Answershttp://www.mathhomeworkanswers.org/224710/sq-rt-a-sq-rt-b-2-and-sq-rt-a-sq-rt-b-3-what-is-a-bWed, 20 Jul 2016 17:17:11 +0000What is the answer in 5/7a-3 + 3/a < 5a?
http://www.mathhomeworkanswers.org/224690/what-is-the-answer-in-5-7a-3-3-a-5a
Please simplify and show the complete solution. Thank you so much! To be clear the first term is 5 over 7a - 3 plus 3 over a less than 5a? To be exact its in rational form.Other Math Topicshttp://www.mathhomeworkanswers.org/224690/what-is-the-answer-in-5-7a-3-3-a-5aTue, 19 Jul 2016 13:34:11 +00009/16x2+xy2+4/9y2
http://www.mathhomeworkanswers.org/224686/9-16x2-xy2-4-9y2
Solve it by mid term break methodAlgebra 2 Answershttp://www.mathhomeworkanswers.org/224686/9-16x2-xy2-4-9y2Tue, 19 Jul 2016 11:25:55 +0000independent variable linear equation
http://www.mathhomeworkanswers.org/224676/independent-variable-linear-equation
~~3) Given a one independent variable linear equation that states cost in $K, and given the following information, calculate the standard error and determine its meaning.<br />
<br />
[Image Description: n =12, Summation of (Y– Yhat)2 = 10591, Ybar=314.375]<br />
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<br />
L7_e2q5.jpg<br />
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If we used this equation, we could typically expect to be off by ± 32.54%.<br />
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If we used this equation, we could typically expect to be off by ± $36.39K.<br />
<br />
If we used this equation, we could typically expect to be off by ± 36.39%.<br />
<br />
If we used this equation, we could typically expect to be off by ± $32.54K.Statistics Answershttp://www.mathhomeworkanswers.org/224676/independent-variable-linear-equationMon, 18 Jul 2016 19:52:56 +0000coefficient of determination (R2)
http://www.mathhomeworkanswers.org/224675/coefficient-of-determination-r2
~~4) You are estimating the cost of optical sensors based on the power output of the sensor. You decide to calculate the coefficient of determination (R2) as part of determining the goodness of fit of an equation. Using the preliminary calculations below, calculate the R2 and determine its meaning.<br />
<br />
[Image Description: Summation of (Yi – Ybar)2 = 189671 Summation of (Yhat – Ybar)2 = 164065 Summation of (Y– Yhat)2 = 25606]<br />
<br />
<br />
L7_e1q6.jpg<br />
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13.50% of the variation in the cost is being explained by the power.<br />
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13.50% of the variation in the power is being explained by the cost.<br />
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86.50% of the variation in the cost is being explained by the power.<br />
<br />
86.50% of the variation in the power is being explained by the cost.Statistics Answershttp://www.mathhomeworkanswers.org/224675/coefficient-of-determination-r2Mon, 18 Jul 2016 19:50:57 +0000fuel consumption
http://www.mathhomeworkanswers.org/224673/fuel-consumption
~~6) You are estimating the fuel consumption (gallons per mile) for intermediate armored vehicles based on the horsepower of the vehicle. The vehicle for which you are estimating has 4.77 hundred horsepower. Given the following equation, select the correct response from each pair.<br />
<br />
Fuel Consumption = - 0.03 + 0.22 (Horsepower in hundreds)<br />
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The dependent variable is Horsepower<br />
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The dependent variable is Fuel Consumption<br />
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The y-intercept is 0.22<br />
<br />
The y-intercept is – 0.03<br />
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The estimated fuel consumption for your vehicle is .96 gallons per mile<br />
<br />
The estimated fuel consumption for your vehicle is 1.02 gallons per mileStatistics Answershttp://www.mathhomeworkanswers.org/224673/fuel-consumptionMon, 18 Jul 2016 19:48:04 +0000what is the current density and electron drift speed
http://www.mathhomeworkanswers.org/224630/what-is-the-current-density-and-electron-drift-speed
calculate the current density and electron drift speed<br />
given: current=8.49x10^-10, copper wire diameter=2.5mm, charge carriers er unit volume=2.49x10^28m-3. Assume that the current is uniformWord Problem Answershttp://www.mathhomeworkanswers.org/224630/what-is-the-current-density-and-electron-drift-speedFri, 15 Jul 2016 12:20:41 +0000MO bisects angle LMN, angel LMO = 6x-20.angle NMO= 2x+32 find angle LMN?
http://www.mathhomeworkanswers.org/224342/mo-bisects-angle-lmn-angel-lmo-6x-20-angle-nmo-32-find-angle-lmn
MO bisects angle LMN, angel LMO = 6x-20.angle NMO= 2x+32 find angle LMN?Geometry Answershttp://www.mathhomeworkanswers.org/224342/mo-bisects-angle-lmn-angel-lmo-6x-20-angle-nmo-32-find-angle-lmnMon, 27 Jun 2016 23:40:19 +0000limits(u^2-2u+3)^2;u=3
http://www.mathhomeworkanswers.org/224331/limits-u-2-2u-3-2-u-3
What's the answer? Help!Other Math Topicshttp://www.mathhomeworkanswers.org/224331/limits-u-2-2u-3-2-u-3Mon, 27 Jun 2016 11:02:06 +0000find the X x+y=89 y-x=50
http://www.mathhomeworkanswers.org/224328/find-the-x-x-y-89-y-x-50
plsssssssssssPre-Algebra Answershttp://www.mathhomeworkanswers.org/224328/find-the-x-x-y-89-y-x-50Mon, 27 Jun 2016 08:40:09 +0000