write and solve inequality

Question

Prices starting of the bike at $120

 

you save $15 per week to purchase one of the bikes shown

 

a. Write and solve an inequality to find the numbers of weeks you need to save to purchase a bike.

 

b. Your parents give you $65 to help you buy the new bike. How does this effect you answer in part a?

use an inequality to justify your answer

Answer 1

Let w = the number of weeks:

 

a) w ≥ (Bike price)/($15 per week)

 

b) w ≥ (Bike Price-$65)/($15 per week)