Question

Alyssa took a math test with 20 questions and she answered 16 questions correctly.

What percent did Alyssa get correct on this test?
How many questions would Alyssa need to answer correctly to score 90%?

Answer 1

1. 16/20×100

80%

2. let the number of questions be x

x/20×100%=90%

100x/20=90%

5x. =90%

5x/5. =90%/5

× =18

Alyssa would need to answer 18 answers correctly to score 90%.