Hannah has a jar filled with 150 coins made up of quarters and nickels. The total value of the coins is $28.30.

If x represents the number of quarters in the jar, which equation can be used to find the number of quarters?

A.

0.05x + 0.25(150 – x) = 28.30

B.

0.25x + 0.05(x – 150) = 28.30

C.

0.25x + 0.05(150 – x) = 28.30

D.
0.05x + 0.25(x – 150) = 28.30

Question

Hannah has a jar filled with 150 coins made up of quarters and nickels. The total value of the coins is $28.30.
 
If x represents the number of quarters in the jar, which equation can be used to find the number of quarters?

A.

0.05x + 0.25(150 – x) = 28.30

B.

0.25x + 0.05(x – 150) = 28.30

C.

0.25x + 0.05(150 – x) = 28.30

D. 
0.05x + 0.25(x – 150) = 28.30

phi · Answer

you start by calling the number of quarters    x
and you might call the number of nickels  y

you need 2 equations  (because you have 2 "unknowns")
the first equation:   if you have x quarters and y nickels, now many coins to you have?
what is x+y  (the problem tells you )

anonymous · Answer

can i just have A. B. C. or D. answer please?