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9. under his cell phone plan, jeriel pays a flat cost of $53 per month …

Question

  1. under his cell phone plan, jeriel pays a flat cost of $53 per month and $3 per gigabyte. he wants to keep his bill under $65 per month. which inequality can be used to determine x, the maximum number of gigabytes jeriel can use while staying within his budget? a. 65 > 3x + 53 b. 65 > 3(x + 53) c. 65 < 3x + 53 d. 65 < 3(x + 53)

Explanation:

Step1: Identify the cost - structure

The flat cost is $53$ and the cost per gigabyte is $3$. Let the number of gigabytes be $x$. So the total cost of the plan is $3x + 53$. Jeriel wants to keep his bill under $65$.

Step2: Write the inequality

The total cost $3x+53$ should be less than $65$. So the inequality is $3x + 53<65$.

Answer:

C. $65>3x + 53$