69,370 questions

62,974 answers


14,839 users

MathHomeworkAnswers.org is a free math help site for student, teachers and math enthusiasts. Ask and answer math questions in algebra I, algebra II, geometry, trigonometry, calculus, statistics, word problems and more. Register for free and earn points for questions, answers and posts. Math help is always 100% free.

Note: This site is intended to help students and non-students understand and practice math. we do not condone cheating. Users attempting to abuse the system will be permanently blocked from further use.

Most popular tags

algebra problems solving equations word problems calculating percentages geometry problems calculus problems fraction problems math trigonometry problems simplifying expressions solve for x rounding numbers order of operations pre algebra problems evaluate the expression slope intercept form algebra math problem factoring probability please help me to answer this step by step. polynomials statistics problems how to find y intercept solving inequalities algebra 2 problems equation of a line solving systems of equations by substitution logarithmic equations please answer this queastion as soon as possible. thank you :) dividing fractions sequences and series help word problem graphing linear equations greatest common factor geometric shapes plz. give this answer as soon as possible square roots substitution method factoring polynomials least common multiple long division solving systems of equations 6th grade math http: mathhomeworkanswers.org ask# solving equations with fractions function of x ratio and proportion proving trigonometric identities standard form of an equation trig identity least to greatest solving equations with variables on both sides algebra problem dividing decimals slope of a line through 2 points solving systems of equations by elimination domain of a function precalculus problems college algebra help me trinomial factoring algebraic expressions solving quadratic equations distributive property help me!! perimeter of a rectangle factors of a number i need help with this slope of a line fraction word problems limit of a function equivalent fractions 8th grade math exponents differentiation how to find x intercept division area of a triangle elimination method differential equation algebra 1 hw help asap geometry 10th grade inverse function simplifying fractions . greater than or less than integral 7th grade math area of a circle geometry parallel lines simplify standard deviation solving triangles circumference of a circle fractions solving linear equations mixed numbers to improper fractions width of a rectangle place value percentages number of sides of a polygon scientific notation problems systems of equations containing three variables diameter of a circle lowest common denominator zeros of a function prime factorization solving systems of equations by graphing length of a rectangle algebra word problems ( dividing polynomials story problems derivative of a function area of a rectangle quadratic functions mathematical proofs vertex of a parabola 5th grade math calculus integers evaluating functions converting fractions to decimals homework equation algebra 1 range of a function calculators combining like terms least common denominator finding the nth term solve for y greatest to least perpendicular lines unit conversion radius of a circle algebra 2 ordered pairs area word problems ) solving radical equations complex numbers slope calculus problem functions calculate distance between two points because i don't understand common denominator multiplying fractions set builder notation binomial expansion percents what is the answers? equation of a tangent line geometry word problems simplifying radicals midpoint of a line ratios help me please and show how to work it out round to the nearest tenth 4th grade math #math show work () product of two consecutive numbers statistics median solve adding fractions absolute value graphing functions radicals significant figures math homework show every step to solve this problem divisibility rules 1 graphing ? roots of polynomials factor by grouping - improper fractions to mixed numbers pre-algebra problems volume of a cylinder how to complete the square subtracting fractions percentage derivatives number patterns simultaneous equations http: mathhomeworkanswers.org ask?cat=# please help solving equations with variables multiplying polynomials numbers mixed numbers maths sets integration decimals http: mathhomeworkanswers.org ask# need help (explain this to me) solving quadratic equations by completing the square solving trigonometric equations surface area of a prism surface area of a cube average rate of change pemdas logarithms divide please answer this question as soon as possible. thank you :) place values rounding decimals = implicit differentiation rational irrational numbers reducing frations to lowest terms perimeter of a triangle algebra1 matrices dividing age problem rounding to the nearest cent arithmetic sequences comparing decimals trigonometry lcm angles answer #help how do you solve this problem in distributive property compound interest geometry problem simplifying trigonometric equation using identities direct variation 9th grade math mean factor writing in decimal form height of a triangle solving equations by factoring none measurement problems solve algebra equation

HELP ME!!!!!!!!!!!! I'M STUPID

Farmer Fred wants to construct a rectangular chook pen, using his barn for one of the sides. The other three sides will be constructed using only 80 metres of chicken wire.

Fred had decided to build a pen that was 10 metres wide and 60 metres long, an enclosure of 600 m2, until his wife Francis pointed out that dimensions of 15 metres and 50 metres would enclose a larger area of 800 m2.


How long and how wide should the pen be if Fred wants to enclose as much land as possible? ( Write an algebraic function that will determine the area of the pen in terms of its width and use it to find the answer)

asked Oct 20, 2012 in Word Problem Answers by anonymous

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:

To avoid this verification in future, please log in or register.

1 Answer

1. maebee yu luv tu be frustrated, thats wot puter is for

2. ?? "chook pen" ??, wot du chook look like?

3. 15&50=750, not 800

4. I take it, yu wanna find biggest area yu kan get with 80 meters for 3 sides

me no anser: square...eech side=80/3, area=711.1111111...

5. yu don trust me?

length+2*wide=80, so leng=80-2*wide



tu find max or min, take derivativ...80-4wide

& set it tu 0...4(20-wide)=0

or wide=20, leng=40, area=800

the mistreeus math gremlins hit agin
answered Oct 20, 2012 by anonymous

Related questions

0 answers 89 views
1 answer 48 views
48 views asked Jan 13, 2013 in Geometry Answers by anonymous
1 answer 507 views
1 answer 42 views
42 views asked Feb 19 in Other Math Topics by anonymous
2 answers 34 views
34 views asked Aug 14, 2013 in Other Math Topics by bhuvana
1 answer 30 views