SOLUTION: "A student missed 9 problems on a chemistry test and received a grade of 44%. If all the problems were of equal value, how many problems were on the test? Round off your answer t
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Question 192549: "A student missed 9 problems on a chemistry test and received a grade of 44%. If all the problems were of equal value, how many problems were on the test? Round off your answer to the nearest integer." Found 2 solutions by nerdybill, solver91311:Answer by nerdybill(7384) (Show Source):
You can put this solution on YOUR website! "A student missed 9 problems on a chemistry test and received a grade of 44%. If all the problems were of equal value, how many problems were on the test? Round off your answer to the nearest integer."
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Let x = number of problems on the test
then
(x-9)/x = .44
x-9 = .44x
.56x = 9
x = 9/.56
x = 16.071
or, rounded to the nearest integer:
x = 16 problems on the test
Let x represent the number of problems on the test. Then x-9 represents the number of problems correctly answered. Since the score on the test was 44%, .44x also represents the number of problems correctly answered.
