Another simple math question. Enjoy.

Switch Kicker · Post by **Switch Kicker** » 04 May 2006 15:27

Again, doing this because I'm bored and I find math problems to be fun to do. =D

Hmmm... What should I use for a name... Ok, here we go.

Tamaran has $7.20 in change. The total amount of quarters she has is three times more than the amount of nickels she has. The total amount of dimes she has is four times more than the amount of nickels she has. How many nickels, dimes, and quarters does she have?

Answer in about an hour and a half when I come back.

Peace,
Fred.

nehocsirhc · Post by **nehocsirhc** » 04 May 2006 17:06

6 nickles 24 dimes and 18 quarters.

Uranos · Post by **Uranos** » 05 May 2006 01:49

Ill try to do it using working out

Let nickel = A

A+3A+4A = 7.20

8A =7.20

A = .9

Quarters = $2.70
Dimes = $ 3.60
Nickels = 90cents

I dont know how much a quarter is (im assuming 25cent coin) or the others are. So thats my final answer.

Iron Clad Ben · Post by **Iron Clad Ben** » 05 May 2006 09:13

Q/4+D/10+N/20 = 7.2
Q = 3N
D = 4N

Plug and chug

3N/4 + 4N/10 + N/20 = 7.2
.75N + .4N + .05N = 7.2
1.2N = 7.2 --------------> N = 6... 6 nickels

Plug and chug again

Q = 3N = 18 ... 18 quarters
D = 4N = 24 ... 24 dimes

Good old algebra. Math always works out.

crazylegs32 · Post by **crazylegs32** » 08 Apr 2008 22:22

Well you never answered

but I thought its funny that someone said the quarters added to 2.70 after he assumed that a quarter was 25 cents.

mc · Post by mc » 08 Apr 2008 23:24

I just spent 5 minutes doing it in my head and ben had it all written out...

Switch Kicker · Post by **Switch Kicker** » 09 Apr 2008 14:49

Matt Cross wrote:I just spent 5 minutes doing it in my head and ben had it all written out...

... <.<

2 years later. Must be bored to go searching around old posts like this.

Laroche · Post by **Laroche** » 10 Apr 2008 18:18

You're 2 years and an hour and a half late to posting the answer.

You lose.