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Chris needs to buy a $100 graphing calculator for his math class his neighbors will pay him $5 per hour to babysit and father gave him a $10 for mowing the lawn what is the minimum number of hours he will need to babysit for him to buy his calculator.


I need a inequality, the anwser to the inequality and the final anwser

Respuesta :

mathstudent55

Answer:

18 hours

Step-by-step explanation:

Babysit: $5/hour

One time job: $10

Let x = number of hours.

5x + 10 ≥ 100

5x ≥ 90

x ≥ 18

Answer: 18 hours

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