Number of results: 1,159
It is not clear what your x means, and where you came up with 10x + 40 for the value of the dimes. Let the numbers of nickels, dimes and quarters be N, D and Q. 5 N + 10 D + 25 Q = 320 D = N + 4 N + D + Q = 25 Now solve those three equations in three unknowns. 5 N + 10(N + 4...
Friday, September 26, 2008 at 10:27pm by drwls
sally has twice as many dimes as nickels. the total value is $3.50. how many nickels does she have? This is as far as i got: #number of nickels = n #number of dimes = 2n help!!
Saturday, September 27, 2008 at 9:19pm by Larry
This one you should be able to figure in your head by trial and error. If she has three dimes, how many nickels must she have? What about the pennies?
Saturday, September 27, 2008 at 9:48pm by Ms. Sue
A box contains 140 dimes and nickels. The total value is $11.15. How many dimes and nickels are there? Need the help finding the formula.
Saturday, September 27, 2008 at 10:56pm by Larry
Let d = # dimes and n = # nickels. Set up two equations from the problem. ======================================= d + n = 140 0.10d + 0.05n = 11.15 Solve for d and n. Post your work if you get stuck. I suggest you multiply equation 1 by -0.05 and add it to equation 2, then solve.
Saturday, September 27, 2008 at 10:56pm by DrBob222
Let N be the number of nickels Let D be the number of dimes N = D + 2 5N + 10 D = 85 (cents) Now substitute to get rid of N 5(D+2) + 10 D = 85 15 D = 75 D = 5 N = 7 If you don't know algebra yet, you could solve this by trial and error, starting wth 8 dimes and 10 nickels (...
Saturday, September 27, 2008 at 10:46pm by drwls
lizzie bought several apples at 20 cents each, ate two of them, and sold the rest for 30 cents each. she made a profit of $2.20. How many did she buy? Mercedese had a total of 37 nickles, dimes, and quarters. She had 3 fewer dimes than nickels and 4 more quarters than nickels...
Sunday, September 28, 2008 at 7:38pm by kayla
NAdia has 7 more nickels than dean has dimes. If dean gives nadia 4 of his dimes, then dean will have the same value of money as nadia. how much money do they have together (nadia only has nickels and dean only has dimes) ned has nickels, dick has dimes, and quincy has ...
Sunday, September 28, 2008 at 9:04pm by Michelle
let the number of nickels be x then you have 84-x dimes 5x + 10(84-x) = 715 solve for x
Tuesday, September 30, 2008 at 8:42pm by Reiny
2. Tub A contains 12% apple cider. Tub B contains 55% apple cider. How many ounces of cider from each tub must be gotten to make a 64 ounce drink that is 20% apple cider? 3. Mary is running to school. She leaves home at 7:00 AM trotting at a speed of 12 mph. Her little lamb ...
Friday, October 3, 2008 at 12:42am by Stephan
3rd Grade Math
It would be sooo easy to explain using Algebra, but Algebra in grade 3 ???? in algebra: let the number of dimes be D so the number of nickels would be D+70 then D + D+70 = 180 2D = 80 D = 40 then dimes is 40 nickels is D+70 = 40+70 = 110 Now if you explain that somehow in ...
Wednesday, October 8, 2008 at 8:54pm by Reiny
3rd Grade Math
You're right! I goofed! She has 40 dimes and 110 nickels. I'm glad that Reiny showed us how to do it with algebra. I don't know how to explain it to a third grader.
Wednesday, October 8, 2008 at 8:54pm by Ms. Sue
Jasmine's quarters total $2.80 more than her nickels, of which she has half as many as she has dimes, which total 80 cents more than her quarters.
Tuesday, October 14, 2008 at 9:42pm by Jacob
3 quarters = $.75 and 18 g 5 nickels = $25 and 25 grams (43 too heavy) 3 quarters = $.75 and 18 g 2 dimes = $.20 and 4 grams 1 nickel =$.05 and 5 grams (27 too light) 2 quarters = $.50 and 12 g 4 dimes = $.40 and 8 grams 2 nickels =$.10 and 10 grams (30g ah hah)
Thursday, October 16, 2008 at 7:33pm by Damon
8th gr. Algebra
I have 3 math problems for homework that are stumping me. Can anyone help guide me? Thanks! Here they are: 1. A full bucket of water weighs eight kilograms. If the water weighs five times as much as the empty bucket, how much does the water weigh? 2. Helen has twice as many ...
Tuesday, October 28, 2008 at 4:25pm by Kelsie
8th gr. Algebra
Let n = # nickels. Let d = # dimes. Let q = # quarters. ===================== Helen has twice as many dimes as nickels; therefore, 2n=d Helen as five more quarters than nickels; therefore, n+5 = q Finally, the value is 4.75 if we add all of it together; so 0.05n + 0.10d + 0....
Tuesday, October 28, 2008 at 4:25pm by DrBob222
input 1 nickel/output 3 pennies, input 1 dime/output 3 nickels, input 1 quarter/(not sure what the output would be--I think 3 dimes, input 1 half-dollar/(not sure what the output would be--thinking 1 quarter). If I am write I am not sure how to write the rule.
Sunday, November 2, 2008 at 5:07pm by meeka
If dimes = D and nickels equals N, and we let D = 2N, Then 5 N + 10 D = 25 N = 250
Tuesday, November 11, 2008 at 7:05pm by drwls
This is a word problem I am supposed to solve with systems. I am having trouble setting it up if anyone could help me. A coin bank contains only dimes and nickels. The bank contains 46 coins. If 5 dimes and 2 nickels were removed the total value of the coins would be $3.40. ...
Thursday, November 13, 2008 at 6:15pm by emm
Let D be the number of dimes and N be the number of nickels. D + N = 46 10(D-5) + 5(N-2)= 340 (cents) Solve those two simultaneous equations
Thursday, November 13, 2008 at 6:15pm by drwls