Question

I need some help on number 5

Answer 1

That would be 11:250

Hope this helps! (:

Answer 2

A ratio is the comparison of 2 numbers. As a convention, most ratios are expressed as a division. Since the care weighs 2500 lbs, and the jack requires 110 lbs of force, we can divide the first by the latter. Simplifying the ratio is a matter of recognizing the common factors that 2500 and 110 have. Here's where you start: $\frac{2500 \left lbs}{110 \left lbs}$