SOLUTION: In Timi's class,there are three times as many students who wear glasses as those who do not.There are 28 students in the class.How many students do not wear glasses?

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Question 1161673: In Timi's class,there are three times as many students who wear glasses as those who do not.There are 28 students in the class.How many students do not wear glasses?
Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


Let x = # of students who don't wear glasses.

Then 3x = # who do wear glasses. [3 times as many as those who do not]

The total number of students is 28:

x+%2B+3x+=+28
4x+=+28
x+=+7

The number of students who don't wear glasses is x = 7.