Question

under her cell phone plan, sadie pays a flat cost of $61.50 per month and $4 per gigabyte. she wants to keep her bill at $75.50 per month. write and solve an equation which can be used to determine g, the number of gigabytes of data sadie can use while staying within her budget.
answer attempt 1 out of 2
equation:
answer: g =

Explanation:

Step1: Write the equation

The total cost is the flat - cost plus the cost per gigabyte times the number of gigabytes. The flat cost is \(61.50\), the cost per gigabyte is \(4\), and the total cost she wants is \(75.50\). So the equation is \(61.50 + 4g=75.50\).

Step2: Solve for \(g\)

Subtract \(61.50\) from both sides of the equation:
\(61.50 + 4g-61.50=75.50 - 61.50\)
\(4g=14\)
Divide both sides by \(4\):
\(g=\frac{14}{4}=3.5\)

Answer:

Equation: \(61.50 + 4g = 75.50\)