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

Answer:

There are 30 total questions on the exam

Explanation:

90% = 0.9

0.9 x TOTAL = 27

27/ 0.9 = TOTAL

30 = TOTAL

Answer 2

Answer:

30 questions

Step-by-step explanation:

if you cross multiply and divide like this,

$\frac{27}{x}= \frac{90}{100}$

27 x 100 = 2700

2700 / 90 = 30

you'll get ; 30 !