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.

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
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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