SOLUTION: If you spend $18 and its 90% of your check, how much was the check for??

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Question 925754: If you spend $18 and its 90% of your check, how much was the check for??
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
90% 'of' your check = 18
.90C = $18
C = 18/.90 = $20
...
And...checking
.90%2A20+=+18