Question

28 Zach has $9.50 and plans to purchase songs from Itunes. Each song he wants to purchase is $1.25. He needs to make sure he has $5.75 left over for the app he wants to buy. Write and solve an inequality to see how many songs Zach can buy.

Answer 1

If x is the number of songs he could buy

This is is the inequality

`9.50 \leqslant 1.25x + 5.75`
He can't spend more than $9.50 and has to keep $5.75, so subtract it because he can't spend it on songs.

`3.75 \leqslant 1.25x`
Divide 3.75 by 1.25 to finish solv8ng the inequality.

`x \leqslant 3`
He can buy 3 or less songs, a maximum of 3 songs.