Wells college in aurora, new york was previously an all-girls college. in 2005, the college began to allow boys to enroll. by 2012, the ratio to girls was 3 to 7. if there were 300 more girls than boys in 2012, how many boys were enrolled that year?

225

Step-by-step explanation:

Let G and B be the number of girls and boys in 2012.

The ratio boys to girls was 3 to 7.

This means

B/G = 3/7

There were 300 more girls than boys in 2012.

This means

G = B+300

Replace in the first equation and solve for B

B/(B+300) = 3/7 ===> 7B = 3(B+300) ===> 7B = 3B + 900 ===>

===> 7B-3B = 900 ===> 4B = 900 ===> B=900/4 ===> B=225

175

step-by-step explanation:

2 inches x 10 miles = 200 miles - 3 inches = 175

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