Question

Student answers 90% of the questions on the math exam correctly if she answers 27 questions correctly how many questions are on exam

Answer 1

There are 30 total questions on the exam

Step-by-step explanation:

90% = 0.9

0.9 x TOTAL = 27

27/ 0.9 = TOTAL

30 = TOTAL

Answer 2

30 questions

Step-by-step explanation:

if you cross multiply and divide like this,

`(27)/(x)= (90)/(100)`

27 x 100 = 2700

2700 / 90 = 30

you'll get ; 30 !