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in 15 minutes lena can finish 2 math homework problems. how many math problems can she finish in 75 minutes?

Respuesta :

Carzzz2003
Lena would be able to finish 10 math homwork problems. 15*5 equals 75. So multiply 2 by 5 and thats how many problems Lena can do in 75 minutes.
zexius
Set up a proportion.
(x is the amount of problems she can do in 75 mins)

[tex] \frac{2}{15} = \frac{x}{75} [/tex]

Now, to find 'x', we need to have it on its own, so we multiply by 75 on both sides.

[tex] \frac{2}{15} [/tex] × [tex]75 = x[/tex]

The answer is 10, as [tex] \frac{2}{15} [/tex] multiplied by 75 is 10.

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