Thursday

April 2, 2015

April 2, 2015

Posted by **cody** on Wednesday, March 16, 2011 at 11:23am.

- algebra -
**PsyDAG**, Wednesday, March 16, 2011 at 11:56amLet x = cost of pencils and y = cost of markers.

12x + 7y = 5.36

8x + 5y = 3.68

Multiply second equation by 1.5.

12x + 7.5y = 5.52

Subtract first equation from modified second equation.

.5y = .16

y = .32

Insert value of y into either equation to find x. Then put both values in the other equation to check your answers.

**Answer this Question**

**Related Questions**

algebra - the cost of three markers and two pencils is 1.80 the cost of four ...

Math - How do you solve this question: The cost of 3 markers and 2 pencils is $1...

Math - Please help solve and explain it, thank you. 1. Juan, Steve and Gabriella...

Algebra1 - Sally bought some ordinary pencils and 4 times as many special ...

Math - Leo has 8 more markers than colored pencils. He has a total of 32 markers...

math - Juan, Steve, and Gabriella bought a total of 30 markers at an art store. ...

algebra - the cost of 3 makers and 2 pencils is $1.80. The cost of 4 markers and...

Math - Ms. Compra bought 5 markers for $4.75. At this price how much will 4 ...

math - Pencils come in cartons of 24 boxes.A school bought 50 cartons of pencils...

MATH PLEASE HELP!!!!! - Carmen bought 3 box of pencils. Each box has the same ...