Algebra 2 I’m so stressed plz plz help?
- cryptogramcornerLv 61 month agoBest 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