Question

convert 45mi/h to kilometers per hour. round to the nearest tenth.(1mi~1.61 km)___ km/h

Answer 1

We need to set up a fraction multiplication with the units we want to cancel on the top left and bottom right. Since we want to miles to cancel we set it up like this

45mi/hr     1.61km/hr

----------- x ------------ =

      1              1mi/hr

 

miles and hours cancel from the top right and bottom left leaving only km/hr as our units. Then we just multiply the fraction

45 time 1.61 is 72.45

1 times 1 is 1

72.45/1=72.45km/hr

Answer 2

Convert 45 miles per hour to feet per hour. Round your answer to the nearest hundredth, if necessary.