Question

Cilia cycles 4.2 km every morning. How many feet are in 4.2 km, given that 1 mile = 1.609 km and 1 mile = 5,280 feet?

A. 13,782.47 feet

B.22,176.00 feet

C. 35,681.18 feet

D. 44,352.00 feet

Answer 1

This is dimensional analysis problem

\[4.2km \frac{ 1mi }{ 1.609km }*\frac{ 5280ft }{ 1mi }\]

I'll leave to you to simplify the problem. But look at how I have the units. The idea is to get the units to cancel when you convert.

Answer 2

A :3

Answer 3

thx

Answer 4

Np! >w<