Question

Helen rented a kayak at the lake. There is a charge of $8 as an initial fee and then $2 an hour for every hour that she uses the kayak. If the total charge is $20, how many hours did she kayak?

Answer 1

$20 total cost
$8 fee
$2 per hour

20 (total) - 8 (initial fee) = 12 (amount spent on hourly use)
12 (amount spent on hourly use) / 2 (cost per hour) = 6 (hours)

20 - 8 = 12
12 / 2 = 6

ANSWER: 6 hours