Asked by Emily
Mr.Adams had a coin collection including only nickels, dimes, and quarters He had twice as many dimes as nickels and half as many quarters as he had nickels. If the total face value of his collection was $300.00, how many quarters did the collection contain?
A) 75
B) 100
C) 250
D) 400
E) 800
I got A but it isn't right and I don't know what to do.
A) 75
B) 100
C) 250
D) 400
E) 800
I got A but it isn't right and I don't know what to do.
Answers
Answered by
Damon
d = 2 n
q = .5 n
5 n + 10 d + 25 q = 30,000 cents
5 n + 20 n + 12.5 n = 30,000
37.5 n = 30,000
n = 800
so
q = 400
D
q = .5 n
5 n + 10 d + 25 q = 30,000 cents
5 n + 20 n + 12.5 n = 30,000
37.5 n = 30,000
n = 800
so
q = 400
D
Answered by
Emily
Thank yoU!
Answered by
Damon
You are welcome.
Answered by
Anonymous
Why aren't we converting the dollars into nickels? It is just converted into cents
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