Question

Walter wants computer software that cost $129. He has $57 saved. If he saves a maximum of $15 a week, the following inequality can be used to find how many weeks it will take Walter to save enough money to buy the software. 15x + 57 _> 129 (btw that’s an equal to symbol under it lol)
A. X_> 4.8
B. X_< 4.8
C. X_> 12.4
D. X_< 12.4

Answer 1

In this question, it is given that

Walter wants computer software that cost $129. He has $57 saved.

he saves a maximum of $15 a week, the following inequality can be used to find how many weeks it will take Walter to save enough money to buy the software.

$15x+57 \geq 129$

And we have to solve this inequality for x.

First we subtract 57 to both sides. And on doing so , we will get

$15x\geq 72$

Dividing both sides by 15.

$x \geq 4.8$\

Correct option is A.