A cell phone company charges a flat rate of $2.50 per month with an additional charge of $.15 per minute. How many minutes to Laura talk on her cell phone if her monthly bill is $72.25.

Answer 1

Let's start by setting up an equation based on the given information:

$2.50 (flat rate) + $0.15 (charge per minute) x (number of minutes) = $72.25 (total monthly bill)

So, the equation becomes:

$2.50 + $0.15x = $72.25

Subtracting $2.50 from both sides:

$0.15x = $69.75

Dividing both sides by $0.15:

x = 465

Therefore, Laura talked for 465 minutes on her cell phone.