let x be number of dimes
let y be the number of quarters
10x+25y=380
x+y=20
now we need to manipulate so we can isolate for one variable.
y=20-x now we sub into y
10x+25(20-x)=380
expand the expression
10x+500-25x=380
-15x=-120
x=8 therefore there are 8 dimes
8+y=20
y=12 therefore there are 12 quarters
16 % of the coins are dimes. 4 of a total of 25.
One roll of dimes contains 50 coins for a value of $5. Quarters come in rolls of 40 for a value of $10.
there are 67 quarters
A standard bank roll of quarters is $10, or forty coins.
20 quarters
33
There are no quarters in a dictionary. A dictionary is a reference book that contains words and their definitions, not coins.
3 quarters and 10 nickels.
The coins in the store's cash register total $12.50. The cash register contains only nickels, dimes, and quarters. There are twice as many dimes as nickels. There are also twice as many quarters as dimes. How many quarters are in the cash register?
16 % of the coins are dimes. 4 of a total of 25.
One roll of dimes contains 50 coins for a value of $5. Quarters come in rolls of 40 for a value of $10.
A standard roll of US cents contains 50 coins.
There are 2+3+4+5 = 14 coins in all so 14 possible outcomes. There are 3+4 = 7 dimes or nickels ie 7 favourable outcomes. So the prob of a dime or nickel is 7/14 = 1/2
If Keoki has 14 quarters and 8 dimes (for a total of 22 coins), she has $3.50 and $0.80 or $4.30 in coins. If Keoki has 15 quarters and 7 dimes (for a total of 22 coins), she has $3.75 and $0.70 or $4.45 in coins. If Keoki has 22 coins that are all dimes and quarters and their value in total is $4.35 as asked, there isn't a combination of coins that will permit her to have both 22 coins and $4.35 worth of coins.
there are 67 quarters
25
47 Quarters 83 Nickels