Let's say they rented the boat for x hours.
The cost of renting the life jackets is 3*3 = $<<3*3=9>>9.
The cost for renting the life jackets and the boat for x hours is 12x+9 = $<<12*1+9=21>>21.
The equation that represents the cost of renting the life jackets and the boat for x hours is 12x+9 = 93.
12x = 93 - 9.
12x = 84.
x = <<7=7>>7. Answer: \boxed{7}.
Snorkel and two friends rented three life jackets and a sailboat. The life jackets were $3 each and the boat was $12 an hour. The total cost was$93. For how many hours did they rent the boat? Algebra
1 answer