Question

A cyclist rides her bike at a rate of 5 miles per hour. What is this rate in kilometers per hour? How many kilometers will the cyclist travel in 5 hours? In your computations, assume that 1 mile is equal to 1.6 kilometers. Do not round your answer.

Answer 1

we know that

The rate is

`5(miles)/(hour)`

Convert to km/hour

`5\text{ }(mi)/(h)=5((1.6))/(h)=8(km)/(h)`

Part 2

Multiply by 5 hours

`8(km)/(h)*5h=40\text{ km}`