Question

A barbell in the weight room weights 45 pounds. If 1 pound is equal to .45 kg, how many kg is in the barbell?

Answer 1

Answer:

20.25 kg

Step-by-step explanation:

Set up a proportion, where x is the number of kg in the barbell

$\frac{1}{0.45}$ = $\frac{45}{x}$

Cross multiply:

x = 45(0.45)

x = 20.25

So, there are 20.25 kg in the barbell

Answer 2

Answer:

the barbell weighs 20.25 kg

Step-by-step explanation:

It's quite easy to find the answer! All you have to do is multiply .45 kg by 45!

so the equation would be:

0.45 x 45 = 20.25

hope this helps you!! <3