nicolexprincess nicolexprincess

08-12-2015
Mathematics

contestada

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

Respuesta :

08-12-2015

Since 75 minutes is 5 times of 15 minutes, she can finish in proportion 2*5 = 10 homework problems.

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VenusRetrograde VenusRetrograde

08-12-2015

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

Answer Link

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