SOLUTION: you earned a 75% on a test you answered 21 questions correctley how many questions were on test

Algebra ->  Customizable Word Problem Solvers  -> Numbers -> SOLUTION: you earned a 75% on a test you answered 21 questions correctley how many questions were on test       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 707273:

you earned a 75% on a test you answered 21 questions correctley how many questions were on test
Found 2 solutions by jim_thompson5910, checkley79:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
21/x = 75/100

21*100 = 75x

2100 = 75x

75x = 2100

x = 2100/75

x = 28

So there were 28 questions total on the test.

Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
21/.75=28 ans.