A cell phone company charges a flat rate of $2.50 per month with an additional charge of $0.15 per minute
How many minutes did Leo talk on the phone is the bill was $72.25
Let's set up an equation to calculate the number of minutes Leo talked on the phone.
Let x be the number of minutes Leo talked on the phone.
Given that the flat rate is $2.50 per month and the additional charge is $0.15 per minute, we can write the equation:
$2.50 + $0.15x = $72.25
Solving for x:
$0.15x = $72.25 - $2.50
$0.15x = $69.75
x = $69.75 / $0.15
x = 465
Leo talked on the phone for 465 minutes.