-47.15
If we assume that the youth only has dimes and nickles, this problem can be solved with a system of equations. Let d = number of dimes and n = number of nickels. first, to make things easier, convert dollars to cents. 48.15 dollars = 4815 cents. Here is the first equation: 10d + 5n = 4815 This makes sense, because a dime is worth 10 cents and a nickel is worth 5 cents. Therefore, you take the number of dimes and multiply it by 10, and add this to the number of nickels multiplied by 5, and you get your total amount of cents. The second equation: d = 4n This makes sense because you have four times as many dimes as nickels. Next, some substitution. 10(4n) + 5n = 4815. We can substitute 4n for d because our second equation shows that they are equal. 40n + 5n = 4815 45n = 4815 n = 107 Now we go back and solve for d. I would use the second equation. d = 4(107) d = 428 Now we go back and check using the first equation. 10 (428) + 5 (107) = 4815 4280 + 535 = 4815 4815 = 4815 cents Therefore, you have 428 dimes and 107 nickels.
pennies - 100 nickels - 20 dimes - 10 quarters - 4
He has 165 cents.
You almost scared me with this one, but I'll give it a go. Easy ones first: (1) 3 quarters (2) 7 dimes; 1 nickel (3) 15 nickels Then it gets tricky: (4) 2 quarters, 5 nickels (5) 2, quarters, 2 dimes, 1 nickel (6) 1 more time to convert 1 dime into 2 nickels (7) 1 quarter, 10 nickels (8) 1 quarter, 5 dimes (9-12) 4 more times to convert each dime, but 1, into 2 nickels (13-18) 6 more times to convert each dime, but 1, into 2 nickels. Did I miss any? 18 different ways (thank goodness you didn't include pennies!)
105 dimes
There are 10 dimes in a dollar, so 10 dollars times 10 dimes would equal 100 dimes.
13 nickels and 78 dime
Chen has 8 nickels, 2 dimes, and 6 quarters.
pennies - 100 nickels - 20 dimes - 10 quarters - 4
4 Qs 12 Dimes 20 Nickles
Peggy had three times as many quarters as nickels. She had $1.60 in all. How many nickels and how many quarters did she have?
40 Dimes and 8 Nickles
Letx = number of nickels 7x = number of dimes 7x (.10) + x (.05) = 3.75 .7x + .05x = 3.75 .75x = 3.75 x = 3.75/.75 = 5 nickels 7x = 35 dimes
He has jillian.
5
1 nickel = 5c 1 dime = 10c If 75c were all nickels then there would be 15 nickels. 2 nickels can then be changed for 1 dime and this can be done 7 times so that the final make up is 1 nickel and 7 dimes. There are thus 8 ways of producing 75c using just nickels and dimes.
2 dimes, 15 nickels, 5 pennies
He has 165 cents.