algebra
posted by cody .
Rachael bought 12 pencils and 7 markers for $5.36, and later bought 8 pencils and 5 markers for $3.68. Find the cost of each pencil and marker.

Let 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.
Respond to this Question
Similar Questions

Math
How do you solve this question: The cost of 3 markers and 2 pencils is $1.80. The cost of 4 markers and 6 pencils is $2.90. What is the cost of each item? 
Algebra1
Sally bought some ordinary pencils and 4 times as many special pencils. Each ordinary pencil cost $0.20 and each special pencil cost $0.35. She spent $14.40. How many of each pencil did she buy? 
algebra
the cost of three markers and two pencils is 1.80 the cost of four markers and six pencils is 2.90 what is the cost of each item? 
algebra
the cost of 3 makers and 2 pencils is $1.80. The cost of 4 markers and 6 pencils is $2.90. What is the cost of each item? 
Math
Leo has 8 more markers than colored pencils. He has a total of 32 markers and colored pencils. How many of each kind does he have? 
Math
Please help solve and explain it, thank you. 1. Juan, Steve and Gabriella bought a total of 30 markers at an art store. Juan bought 3 more markers than Steve. Gabriella bought 7 times as many markers as Steve. How many markers did … 
math
Juan, Steve, and Gabriella bought a total of 30 markers at an art store. Juan bought 3 more markers than Steve. Gabriella bought 7 times as many markers as Steve. How many markers did each buy. 
Math
Ms. Compra bought 5 markers for $4.75. At this price how much will 4 markers cost? 
Math(help please)
Alexis has a pencil bag containing one of more of each of the following: red pens, blue pens, mechanical pencils, and black markers. He knows that there is a 4% chance he will pull a red pen out of the bag if he chooses randomly. What … 
Math
Miss has three times as many markers and colored pencils the total number of markers and colored pencils is 84 how many workers does Miss have