If Nina walks 2 miles in 50 minutes, then Nina will walk how far in 120 minutes if she walks at the same speed the whole time?

Question

If necessary, round your answer to the nearest tenth of a mile.

Answer 1

m/120 = 2/50

m/12 =2/5

m = 24/5 = 4.8 miles in 120 minutes

50 minutes = 5/6 of an hour

2 miles in 5/6 hr

means 6/5 x 2 = 12/5 = 2.4 miles per hour

in 120 minutes or 2 hours that's 2x2.4 = 4.8 miles

2 miles in 50 minutes means 2 miles in less than 1 hour

120 minutes = 2 hour which is 100 minutes + 20 minutes

4 miles in 100 minutes plus 20/60 = 1/3 hour. 1/3x2.4 = .8 mile

4 + .8 = 4.8 miles in 120 minutes