Answer:
7 mph (7 miles per hour)
Step-by-step explanation:
3 1/2 = 3.5
1/2 = 0.5
Set up the ratio:
3.5/0.5 = x/1
Cross multiply:
3.5 × 1 = 0.5x
3.5 = 0.5x
3.5 ÷ 0.5 = x
7 = x
3.5miles/0.5hour
=7miles/hr
Answer:second option
3.2