Question

Cheryl wants to save at least $500 to buy a video game console. She already has $100 saved up and is going to babysit for $20 an hour until she can save up the rest. Write an inequality to represent this scenario, then solve the inequality to find out the minimum number of hours she must babysit to save a total of $500?

Answer 1

x + 5 ≥ 25 [Inequality]

Minimum no. of hours = 15 hours

Explanation:

Given :-

Price of video game console = $500

Money in hand = $100

Rate at which money is gained = $20/h

To Find :

Inequality to represent the situation

Variables :-

h = number of hours

Solving :-

20x + 100 ≥ 500

x + 5 ≥ 25 [Inequality]

x + 5 ≥ 20

x ≥ 15

Minimum no. of hours = 15 hours