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inequalities

a cell phone company has offered you two different rates. The first rate is $35 per month and 5 cents per phone call (time does not matter). The second offer is $55 per month and 2 cents per call. Set up the inequality to model this problem and find where it is less expensive to go with the second plan.
asked Feb 20, 2011 in Algebra 1 Answers by supemom1 (280 points)

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35 Answers

first scheme's cost is 35+0.05t (where t is number of calls)

second is 55 + 0.02t

for second plan to be less expensive

it's 55 + 0.02t < 35 + 0.05 t

or  0.03t > 20

t > 666

in other words, if you make more than 666 calls the second plan will cost you less
answered Mar 7, 2011 by HenryYang Level 3 User (2,140 points)
wtf = 69+69+4way =last night

What are the steps of the order of operations? Why is it important that you follow the steps rather than solve the problem from left to right?

 

- Write an expression for your classmates to simplify using at least three of the following:

o Groupings: Parenthesis, brackets, or braces
o Exponents
o Multiplication or division
o Addition or subtraction

 

- Consider participating in the discussion by simplifying a classmate’s expression, showing how the expression would be incorrectly simplified if computed from left to right, or challenging the class with a complicated expression. Respond to your initial post and provide your classmates with the answer to your expression. 

 

answered Feb 8, 2012 by anonymous
operatio in math first do any calculation tat are inside parenthese and take care of exponents and roots, next, perform all multiplication and divisions left to right then do all addition and subtration left to right.
answered Feb 8, 2012 by anonymous
(8,-12)

y-11>2y-3
answered Apr 20, 2012 by anonymous

which value are solutions to the inequality of √x<12 ?

 

answered Apr 23, 2012 by anonymous

 Which values are solutions to the inequality  < 10

answered Apr 24, 2012 by anonymous
How to solve this inequality problem and graph on number line c + 4 > -6

                                                                                                             -
answered May 3, 2012 by anonymous
3x^2-14x+8>0
answered May 20, 2012 by anonymous
Is there any book out there that has a very good solution to the famous :Triangle inequality solutions?
answered May 31, 2012 by anonymous

angryhghhthuyguigy ugvgvnvbbbvbnxvjvhb ghgghhchbbvhucf ixocyft5gtyn21g65+2bfvdhsuf

answered Aug 8, 2012 by anonymous
lim     (h-a)^6+a^6/h

h→0
answered Oct 7, 2012 by anonymous
9 grade algebra class need  help in inverse of radicals and rational exponenets.
answered Oct 12, 2012 by anonymous
your mommy!! :)
answered Nov 15, 2012 by anonymous
make it easier because i don`t know how to solve
answered Dec 12, 2012 by anonymous

What is the graph of the inequality? x –3

answered Apr 5, 2013 by anonymous
explain how to graph inequality y>-2x+3
answered May 6, 2013 by anonymous
-2x-10y=-18 -4x-12y=-20
answered Aug 19, 2013 by anonymous
what is 8-5(x+3)=-2
answered Oct 2, 2013 by robert

-20<5y

 

answered Oct 14, 2013 by sofia
What is the solution set for the given inequality if the replacement set for r is {5, 6, 7, 8, 9, 10}?

5r < 6r -8
answered Oct 29, 2013 by anonymous
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answered Nov 17, 2013 by dick btohpinktoktn
luke
answered Nov 18, 2013 by anonymous

graph of the inequality y > |2x + 1|.

answered Nov 25, 2013 by anonymous
seven years ago,ariel was twice as old as his father the sum of their persent ages is 48.at most,how old is ariel?
answered Jan 19, 2014 by anonymous

anu ba itu hindi ku maintindihan angrycryingbroken heartsadfrown

answered Mar 8, 2014 by Beauty

f+g = (x - 4) + (x2 - y)

answered Mar 14, 2014 by edgarmorgia
m+5/8 +m+2/3
answered Mar 27, 2014 by divine
lg x - lg(x+1)>0
answered Jul 24, 2014 by krisna
-17-2r<3(r+1)
answered Aug 24, 2014 by anonymous
how to do this
answered Sep 3, 2014 by tiana
24/5/3/5of5+4/5*3/10-1/5
answered Sep 16, 2014 by rishi
Prove inequalities

a/b + b/a >=2
answered Sep 24, 2014 by Xhejsi
I need your help. How to simplify expressions containing exponents of 4. (3/4) exponent 3 and time 4/7 exponent 2?
answered Oct 24, 2014 by La V
I go with the free option
answered Oct 24, 2014 by anonymous

hi im 14 years old and im having trouple whit my homeworks pls help and i also have a test tmmrw please help!!sadplease!e

answered Nov 17, 2014 by anonymous

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