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In fifteen minutes, Lena can finish 2 math homework questions. How many can she finish in 75 minutes?

In fifteen minutes, Lena can finish 2 math homework questions. How many can she finish in 75 minutes?
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3 votes
In fifteen minutes, Lena can finish 2 math homework questions. How many can she finish in 75 minutes?

User Yezzz
by
8.6k points

2 Answers

5 votes
Since 75 minutes is 5 times of 15 minutes, she can finish in proportion 2*5 = 10 homework problems.
User Duong Nguyen
by
7.9k points
3 votes
Answer= 10 math problems

2math problems x math problems
______________=_______________
15 minutes 75 minutes

cross multiply
15x=150
divide both sides by 15
x=10 math problems

Lena can finish 10 math problems in 75 minutes
User Santonu
by
7.6k points
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