Jennifer had a total of 20 coins consisting of nickels and quarters. If the value of the coins was $1.80, how many quarters did
she have?
1 answer:
N=nickles
q=quarters
n+q=20
5n+25q=180
divide last question by 5
n+5q=36
n+q=20
n+5q=36
multiply top equation by -1 and add to 2nd equato
-n-q=-20
<u>n+5q=36 +</u>
0n+4q=16
4q=16
divide both sides by 4
q=4
4 quarters
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Answer:
the second one is your answer
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Answer:
16
Step-by-step explanation:
i got it right on the test
D.
Kelly got 3^3 (27) while Alia got 4^2 (16) less than her. When you put it together you get 3^3 - 4^2
