SOLUTION: ratio of quizzes to tests is 6:1. Total of 77 semester grades, how many are tests? A) 5 tests B) 7 tests C) 11 tests D) 14 tests I do not understand how to set this problem u

Algebra ->  Proportions  -> Lessons -> SOLUTION: ratio of quizzes to tests is 6:1. Total of 77 semester grades, how many are tests? A) 5 tests B) 7 tests C) 11 tests D) 14 tests I do not understand how to set this problem u      Log On


   

Question 287453: ratio of quizzes to tests is 6:1. Total of 77 semester grades, how many are tests?
A) 5 tests
B) 7 tests
C) 11 tests
D) 14 tests
I do not understand how to set this problem up. Can someone please point me in the right direction?
Answer by kmerlandson(3) About Me  (Show Source):
You can put this solution on YOUR website!
for every 6 quizzes, there is 1 test. If we have 11 tests then we would have 6 times as many quizzes. So if we have 11 tests, we would have 66 quizzes. Since there are 77 semester grades, and 66 quizzes plus 11 tests equal 77 semester grades, there will be 11 tests.