SOLUTION: A student missed 7 problems on a English test and received a grade of 66%. If all the problems were of equal value, how many problems were on the test? Round your answer to the nea

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Question 681487: A student missed 7 problems on a English test and received a grade of 66%. If all the problems were of equal value, how many problems were on the test? Round your answer to the nearest integer.
Answer by MathMan88(14) About Me  (Show Source):
You can put this solution on YOUR website!
Setup Equation using T and total number of problems and (.66 comes converting % to decimal) 66% divide by 100)
%28T-7%29%2FT+=+.66
Multiply both sides by T
T-7=.66T
Add 7 to both sides and subtract .66T from both sides
.34T=7
divide both sides by .34
T=20.588
Round Answer
21
Total number of problems on test is 21.