Question

Under her cell phone plan, Paisley pays a flat cost of $60 per month and $3 per gigabyte. She wants to keep her bill under $75 per month. Write and solve an inequality which can be used to determine gg, the number of gigabytes Paisley can use while staying within her budget.

Answer 1

She can use under 5 gigabytes per month.

Explanation:

fixed charge: 60

charge per gigabyte: 3

charge for g gigabytes: 3g

total charge: 3g + 60

maximum amount to spend: under 75

3g + 60 < 75

Subtract 60 from both sides.

3g < 15

Divide both sides by 3.

g < 5

She can use under 5 gigabytes per month.