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college student

by MARIA
(SALT LAKE CITY, UT)

Alvin's age is three times Elga's age. The sum of their ages is " 40 ". What is Elga's age?

Let x be Alvin's age

Let y be Elga's age

x + y = 40

x = 3y

Replace x = 3y into x + y = 40

We get 3y + y = 40

4y = 40

4y/4 = 40 / 4

y = 10

So Elga is 10 years old

Alvin's age is x = 3y = 3 times 10 = 30





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college student

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Dec 02, 2012
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by: SykesMyrna20

It's known that cash makes people free. But what to do when somebody has no cash? The only one way is to try to get the loan or just financial loan.

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