s20094442
Answered

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Under his cell phone plan, David pays a flat cost of $68.50 per month and $4 per gigabyte. He wants to keep his bill under $85 per month. Which inequality can be used to determine gg, the maximum number of gigabytes David can use while staying within his budget?

Sagot :

Answer:

The monthly cost is 30+0.05n if we call the number of texts n. Heather wants to keep this less than 60, so the inequality is: 30+0.05n < 60

Step-by-step explanation:

Note that we can also subtract

30 from each side: 0.05n<30 We can also divide both sides by 0.05 n < 600

This is the most useful inequality, since it tells Heather she needs to send fewer than 600 texts per month, or about 20 per day.

jaidamarieerskine
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