SOLUTION: The ratio of boys to girls in Mr. Jones’s class is 3 to 5, the ratio of boys to girls in Mrs. Smith’s class is the same, and you know that there are 15 girls in Mrs. Smith’s class.

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: The ratio of boys to girls in Mr. Jones’s class is 3 to 5, the ratio of boys to girls in Mrs. Smith’s class is the same, and you know that there are 15 girls in Mrs. Smith’s class.      Log On


   



Question 291583: The ratio of boys to girls in Mr. Jones’s class is 3 to 5, the ratio of boys to girls in Mrs. Smith’s class is the same, and you know that there are 15 girls in Mrs. Smith’s class. How many boys are in Mrs. Smith’s class?
Found 2 solutions by richwmiller, vleith:
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
Some website rules you won't like:
You are limited to one problem per submission. [One problem at a time.]
No more than 4 submissions daily. [4 problems a day]
No similar problems. [Different type problems only.]

Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
3%2F5+=+boys%2Fgirls
Given 15 girls
3%2F5+=+boys%2F15
%283%2A15%29+%2F5+=+boys
9+=+boys