Courtney can run 4.5 miles in 36 minutes .. How many minutes would it take her to run mini marathon of 12 miles at this same rate??

Question

lasttccasey · Answer

Well the rate is distance over time so 4.5/36 miles per minute (mi/min).
distance divided by rate will give you time.
so D=12 R=.125mi/min T=?
D/R=T Solve for T

arabpride · Answer

Well u have to start off by finding unit rate....

arabpride · Answer

divide 36 by 4.5...

arabpride · Answer

and u get 8...

lasttccasey · Answer

Rate is a measurement of something per unit time.

anonymous · Answer

4.5/36 = 12/x (4.5 miles to 36 min = 12 miles to x min)
cross multiply
(4.5)(x) = (12)(36)
4.5x = 432
x = 432/4.5
x = 96 minutes

arabpride · Answer

NOw u have to multiply 8 and 12, givvin u the number of minutes it would take to run 12 miles

arabpride · Answer

and.. 8 x 12 = 96

arabpride · Answer

so.....96 minutes to run 12 miles