Question

You lost your cell phone and have to use a phone booth. The call will cost $0.25 for the first minute and

$0.15 for each additional minute.
If you have 85 cents, what is the maximum amount of time you can talk?

Answer 1

.85=.25+.15x
.6=.15x
4=x
but final answer is 5 minutes due to the first call costing more

Answer 2

4 minutes

Explanation:

make equation

0.25+(0.15x)= 0.85

solve for x

0.15x= 0.60

x=4