Anonymous

# Algebra 2 I’m so stressed plz plz help?

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- cryptogramcornerLv 69 months agoFavourite answer
Using q as the number of quarters and n as the number of nickels.

There are 20 quarters and nickels in my pocket translates into

q + n = 20

"2 more" will translate to +2

2 times as many quarters translates as 2q

and so "2 more than two times as many quarters is 2 + 2q

This is the number of nickels so

n = 2 + 2q

The whole point is to have two equations with two variables.

Now you can solve this by substitution

Going back to q + n = 20, replace n with 2 + 2q and now you have

q + 2 + 2q = 20

simplify this into

3q + 2 = 20

and subtract 2 from both sides to get

3q = 18

and so q = 6. and since n + q = 20, n must be 14

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