Cheryl hikes 7 miles in 3 days, how many miles does she hike in 12 weeks?

Question

Multiplication problem.

Answer 1

12 weeks = 12(7) = 84 days

miles/days: 7/3 = m/84     Cross multiply

3m = 588

m = 196 miles

 

Answer 2

Method Number One to Solve This:

Figure out how many miles she hikes in 1 day and them multiply that by the number of days in 12 weeks.

She hikes 2.33 miles in one day (7 divided by 3)

She hikes 196 miles in 12 weeks (2.33 times 84)

 

Method Number Two to Solve This:

Set up a proportion

7/3=X/84

3X=588

X=588/3

X=196