Question

question: under his cell phone plan, suav pays a flat cost of $39 per month and $4 per gigabyte. he wants to keep his bill at $45.40 per month. write and solve an equation which can be used to determine $x$, the number of gigabytes of data suav can use while staying within his budget.
answer attempt 1 out of 2
equation: 35 + 3x = 46.40
answer: x = 3.8

Explanation:

Step1: Set up total cost equation

$39 + 4x = 45.40$

Step2: Subtract flat cost from total

$4x = 45.40 - 39$

Step3: Calculate remaining cost

$4x = 6.40$

Step4: Solve for x

$x = \frac{6.40}{4} = 1.6$

Answer:

Equation: $39 + 4x = 45.40$, Answer: $x = 1.6$