12 boys 3 boys
------------- reduces to ------------
16 girls 4 girls
We want the simplified ratio of girls to students. There are 12+16, or 28, students to start with. We must reduce 16/28, which is the ratio of girls to students before simplification. This reduces to 4/7 (4 to 7).
Answer:
~84.5 pages
Step-by-step explanation:
Why?
Copy machine prints 169 pages per 2 minutes. In order to solve for 1 minute, you must half the total pages printed in 2 minutes to find the value printed in 1 minute (since 1/2 of 2 minutes is 1 minute)
169/2 = ~84.5 pages
Sanity check:
84.5 pages per 1 minute
84.5 x 2 = 169 pages per 2 minutes