A quarter is 2.5 dimes. 85 quarters x 2.5 = 212. 5 So that's 212 dimes and a nickel.
A set of half dollar quarter and dime is worth 50+25+10 = 85 cents. So, with an equal number of these coins the sum can only be a multiple of 85 cents. 15 dollars is not a multiple so cannot be so changed.
To make 85 cents, you can use various combinations of coins. For example, you could use 3 quarters (75 cents) and 2 dimes (20 cents) for a total of 5 coins. Alternatively, using 8 dimes and 1 nickel also totals 85 cents with 9 coins. The exact number of coins depends on the denominations you choose to use.
Three quarters and one dime total 85 cents. Each quarter is worth 25 cents, so three quarters equal 75 cents. Adding the 10 cents from the dime brings the total to 85 cents.
Oh, dude, let's do some math, like, for fun. So, 2 quarters is 50 cents, 2 dimes is 20 cents, and 3 nickels is 15 cents. Add them all up and you get... drumroll... 85 cents! Wow, what a thrilling total, right?
1 quarter (25¢) 3 dimes (55¢) 6 nickles (85¢) 15 pennies (100¢)
85 dimes = 85*10 cents = 85*10/25 quarters = 34 quarters.
4 quarters=10 dimes x quarters=85 dimes quarter=10/4 dimes x (10/4 dimes) = 85 dimes x= 85 dimes/(10/4 dimes) x=34 Answer: 34 quarters
3 quarters & 2 nickels
A set of half dollar quarter and dime is worth 50+25+10 = 85 cents. So, with an equal number of these coins the sum can only be a multiple of 85 cents. 15 dollars is not a multiple so cannot be so changed.
85
2 quarters, 3 dimes, 1 nickel, 3 pennies. I worked it out by knowing that 3 pennies would be needed for sure (to get from 85 to 88), but not 8 pennies, since there's no 80 cent coin. Then just started working it out with quarters, then seeing how many dimes, and then nickels would work out to the six remaining coins.
Oh, dude, let's do some math, like, for fun. So, 2 quarters is 50 cents, 2 dimes is 20 cents, and 3 nickels is 15 cents. Add them all up and you get... drumroll... 85 cents! Wow, what a thrilling total, right?
Two quarters, one dime, four nickels, five pennies
1 quarter (25¢) 3 dimes (55¢) 6 nickles (85¢) 15 pennies (100¢)
I don't think that this can be done using current US coins. In Canada, however, there are at least three combinations: -- 80 cents, 17 dimes, 2 quarters and a two-dollar coin -- 85 cents, 9 dimes, 5 quarters and a two-dollar coin -- 90 cents 1 dime, 8 quarters and a two dollar coin
.82, .85, .88
85 deciliters equal 850cL