judy got 117 problems right on a math test in her night school class. She got a score of 78% right. How many problems were on th

Question

Sidana [21]

3 years ago

7

judy got 117 problems right on a math test in her night school class. She got a score of 78% right. How many problems were on th

e test?

Mathematics

1 answer:

scZoUnD [109] · Answer 1 · 2022-05-27T05:05:24+03:00

scZoUnD [109]3 years ago

6 0

You would set this up as Part÷Whole=Percent÷100
Part=117
Whole= X
Percent=78
117÷X=78÷100
Set these up as fractions and cross multiply. You will get 117×100=78X
117×100=11,700
Divide both sides by 78 and you get x=150
There were 150 problems