Question

At the sunflower music store you can buy 5 CD's for $15 and you can also buy 4 viynl recordsfor $40. Let x represent the number of CD's you can buy, and let y represent the number ofviynl records you can buy. You spent a total of $120 at the music store. Write a linear equationin standard form that shows how many CD's and how many records you bought.

Answer 1

step 1

Find out the price of one CD

Divide $15 by 5

15/5=$3 each CD

step 2

Find out the price of one vinyl record

Divide $40 by 4

40/4=$10 for each vinyl record

step 3

Let

x -----> number of CDs

y ----> number of vinyl record

the linear equation that represents this problem is

3x+10y=120