Formulas using formulas to solve problems
guided practice
1. you have $12.00 to rent a pair of in-line skates. they rent for $3.00 plus $1.50
per hour. to find the maximum length of time you can rent the in-line skates,
solve the formula c = 3 + 1.5h for h. then substitute 12 for c.
a 6 hours
b 7.5 hours
c 5 hours
d 10 hours