Question

under her cell phone plan, mayerlin pays a flat cost of $55 per month and $5 per gigabyte. she wants to keep her bill under $70 per month. write and solve an inequality which can be used to determine x, the number of gigabytes mayerlin can use while staying within her budget.
answer attempt 1 out of 2
inequality: x

Explanation:

Step1: Set up the inequality

The flat cost is $55$ and the cost per gigabyte is $5x$. The total bill should be under $70$. So the inequality is $55 + 5x<70$.

Step2: Solve the inequality for $x$

Subtract $55$ from both sides: $5x<70 - 55$.
Simplify the right - hand side: $5x<15$.
Divide both sides by $5$: $x < 3$.

Answer:

Inequality: $55+5x < 70$; $x<3$