SOLUTION: Find the percent of the number 13. On a math test, you obatained a score of 66 points. This was 88% of the total number of points on the test . How many total points were on the

Question 116377: Find the percent of the number
13. On a math test, you obatained a score of 66 points. This was 88% of the total number of points on the test . How many total points were on the test?
Any help with this equation would be Greatly appreciated.
Answer by bucky(2189) (Show Source): You can put this solution on YOUR website!
Let X represent the total number of points on the test.
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The problem tells you that 88% of X equals 66 points
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Change 88% to its equivalent decimal form of 0.88.
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Then multiply 0.88 times X and set that equal to 66 points. In equation form this is:
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0.88X = 66
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Solve for X by dividing both sides of this equation by 0.88 and you get:
.

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Calculator time ... when you divide 66 by 0.88 you get 75. So the answer to this problem is:
.

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There are 75 points on the exam.
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Check: If the test has 75 points and you got 88% (or 0.88) of the points correct then you
scored 0.88 times 75 which equals 66 points. This checks with the information in the problem.
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Hope this helps you to understand percent a little more.
.
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