Question

A car traveled a distance of D = 199 km (kilometers) for T = 4.2 hours at a constant rate. Use the formula

D = R · T
to find the speed (R) of the car in km per hour. Round your answer to the nearest tenth.

Answer 1

Explanation:

199 =R×4.2

R= 199÷2

R= 47.38km

nearest tenth is 47.4

Answer 2

47.4 not rounded 47.38

Explanation:

You divide 199 by 4.2 and get 47.4 and then you can multiply 47.38x4.2 and will get you 199