187/200 = x/100 What is x?

Question

Trying to figure out my grade in Psychology class. I currently have 187 points out of a possible 220.

Answer 1

Hi Mirah;

According to your title, your question is...

187/200 = x/100

Let's cancel-out the two zeros on both sides...

187/200 = x/100

187/2=x

93.5=x

CONGRATULATIONS!

According to your explanation, your question is...

187/220=x/100

One zero cancels on both sides...

187/220=x/100

187/22=x/10

Cross-multiply...

22x=(187)(10)

22x=1870

Divide both sides by 22...

(22x)/22=1870/22

x=85

congratulations!