Question

A tire shop had to fill 3 1/2 tires with air. It took a small air

compressor 3 3/5 seconds to fill them up. How long would it take to fill 3 tires?

Answer 1

3 1/2 = 7/2
3 3/5 = 18/5

(7/2)/3 = (18/5)/t

3(18/5) = (7/2)t
54/5 = (7/2)t
108/35 = t
t = 3 3/35

Answer 2

Answer: 3 seconds

Step-by-step explanation: the pump fills 1 tire per second