60% of all the coins has to be 1 coin and must be U.S money....
i need this answer for school
2006-12-24 08:31:31 · 9 answers · asked by Anonymous in Business & Finance ➔ Personal Finance
60 pennies
32 dimes
4 quaters
4 nickels
there you go i hope it helps
2006-12-25 05:41:12 · answer #1 · answered by Anonymous · 0⤊ 0⤋
60% of all the coins = 60 coins.
60 nickels would equal $ 3.00.
Any higher denomination of coin (such as dimes) won't work for the 60 coins, since 60 of them equal too high a total ( > $ 5.00).
So your solution will start with either 60 pennies, or 60 nickels.
With 60 nickels, the problem then becomes, 40 coins of any denomination must total the remaining $ 2.00.
40 more nickels and you've got $ 2.00 for the total of $ 5.00 with one hundred coins.
If the other 40 MUST be other than nickels, make an algebraic equation in one variable to try to solve it using two (2) other coin denominations.
Try: pennies and dimes.
x = number of pennies.
40 - x = number of dimes.
Value of the total = $ 2.00 = 200 cents.
x(1) + (40 - x)10 = 200.
X is multiplied by 1 since 1 cent is the value of each penny.
(40 -x ) is multiplied by 10 since 10 cents is the value of each dime.
Solved, the equation yields 9x = 200 or x = 22.2222.
Since the answer is not a whole number, this is not a valid answer.
Two other possibilities: pennies and quarters, and dimes and quarters.
Pennies and quarters: x + (25)(40 - x) = 200.
24x = 800.
x = 33.3333. No good.
Dimes and quarters: 10x + (40 - x)25 = 200.
x = 53.3333. No good.
Try a solution of all three together: 200 cents in 40 coins; the average value of which is 5 cents. Are fifty-cent pieces allowed? Dollar coins? I'm stumped for the time being.....
2006-12-24 17:56:53 · answer #2 · answered by JackN 3 · 0⤊ 1⤋
Here is one way:
$ .50 x 1 = $ .50
.25 x 2 = $ .50
.10 x 7 = $ .70
.05 x 60= $ 3.00
.01 x 30= $ .30
TOTAL: $ 5.00
Next time, try to make a little more effort to do your homework on your own.
2006-12-24 16:41:25 · answer #3 · answered by Steve-o-58 3 · 0⤊ 0⤋
100 coins = $5.00 take 100 nickles. 100 x .05 = 500 or $5.00
2006-12-24 16:43:04 · answer #4 · answered by GRUMPY 7 · 0⤊ 0⤋
60 pennies
32 dimes
4 quaters
4 nickels
2006-12-24 16:38:20 · answer #5 · answered by Bailey 3 · 0⤊ 0⤋
well.. One hundred nickels would do it
or
60 pennies
22 nickels
10 quarters
8 dimes
100 coins
2006-12-24 16:34:05 · answer #6 · answered by Grundoon 7 · 0⤊ 1⤋
nickels 100%
2006-12-24 16:38:55 · answer #7 · answered by Den P 3 · 0⤊ 0⤋
100 nickles!
2006-12-24 16:38:36 · answer #8 · answered by the_pharaoh109 4 · 0⤊ 0⤋
Do your own homework that is the only way you will prosper in this life. SORRY!
2006-12-24 16:34:21 · answer #9 · answered by bouncey1yeah 2 · 0⤊ 1⤋