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Jack knows that he has 40 coins in his pocket all either nickels or dimes If the total amount of money he has equals 3.50 how many nickels does he have?
Wiki User
∙ 15y ago
Let x be the number of nickles. So, the number of dimes is 40 - x. So,
0.05x + 0.10(40 - x) = 3.50
0.05x + 4 - 0.10x = 3.50
- 0.05x + 4 = 3.50 subtract 4 to both sides;
-0.05x = - 0.50 divide by - 0.05 to both sides;
x = 10
Thus, Jack has 10 nickles and 30 dimes.
Wiki User
∙ 15y ago
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Shari has 2.15 in change in her pocket and in nickels and dimes. She has 27 coins in all. How many nickels does she have?
She has 11 nickels.
Marcus has a total of 10 nickels and dimes in his pocket He has a total of 70 cents How many dimes does he have in his pocket?
4
James has 33 coins in his pocket all of them nickels and quarters If he has a total of 2.65 how many quarters does he have?
This problem can be solved by solving the system of equation. Total worth of coins: $2.65 Total number of coins: 33 n= number of nickels q= number of quarters since we know that there are 33 coins total, we can set the equation like this: number of nickels + number of quarters = total number of coins => n+q=33 We also know that the worth of these coins is $2.65. each nickel is worth of $0.05 each quarter is worth of $0.25 therefore we can set the equation: 0.05 x number of nickels + 0.25 x number of quarters = total worth of coins. 0.05n+0.25q=2.65 However, for convienience, we should multiply the equation above by 100 to get rid of decimals. Thus it is 5n+25q=265 you will now have a following set of 2 equations: n+q=33 5n+25q=265 Use the SUBSTITUTION METHOD to solve either n or q for solving n: (replace q with n if you're willing to solve q instead) n+q=33 => n=33-q (since n is equal to 33-q, we can -q -q substitue n in the other equation.) 5(33-q)+25q=265 => 165-5q+25q=265 => 20q=100 => q=5 -165 -165 /20 /20 There are 5 quareters as a result.(or 28 nickels) since you know that q=5 you can substitute q in the first equation. n+(5)=33 => n=28 - 5 -5 therefore, there are 5 quarters and 28 nickels. ELIMINATION METHOD: n x -5 + q x -5 = 33 x -5 => -5n-5q=-165 5n+25q=265 + 5n+25q=265 ------------- 20q=100 => q=5 /20 /20 Or simply we can say: if we have x quarters, we have .25x value of them. So the value of nickels will be 2.65 - .25x. Since we have 33 coins, and x quarters, then the number of nickels will be 33 - x. So the value of all nickels would be also .05(33 - x). Thus, we have:2.65 - .25x = .05(33 - x)2.65 - .25x = 1.65 - .05x2.65 - 1.65 - .25x + .25x = 1.65 - 1.65 - .05x + .25x1 = .20x1/.20 = .20x/.20x = 5 the number of quarters 33 - x= 33 - 5= 28 the number of nickels. Thus, we have 5 quarters and 28 nickels.
If you have eight coins in your pocket that equal 1.02 What are the eight coins?
The 8 coins are: 3 quarters, 2 dimes, 1 nickel and 2 pennies.
How Darryl has 7 left in his pocket He spent 9 on a book on a compact disc and 4 on a magazine How much money did he have at the beginning of the day?
32
Derrick has a total of 9 nickels and quarters in his pocket. The total amount of money he had in coins is $1.45. How many nicked and how many quarters does Derrick have?
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Jerry has more than 2.00 in his pocket Let m equals the amount of money in Jerry's pocket?
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Shari has 2.15 in change in her pocket and in nickels and dimes. She has 27 coins in all. How many nickels does she have?
She has 11 nickels.
Marcus has a total of 10 nickels and dimes in his pocket He has a total of 70 cents How many dimes does he have in his pocket?
4
Marcus has a total of 10 nickels and dimes in his pocket he has a total of 70 cents how many dimes does he havein his pocket?
4
What are the release dates for Pocket Full of Nickels-Te Adoro - 2013?
Pocket Full of Nickels-Te Adoro - 2013 was released on: USA: 13 November 2013 (International Puerto Rican Heritage Film Festival)
Jimmy had 15 coins in his pocket they were dimes and nickels the total value of the coins was 1.30 how many dimes did he have in his pocket?
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Kid has 25cents in his pocket one of them isn't a 5 cent coin what coins does he have?
One quarter,or 25 pennies, or 20 pennies and 1 nickel, or 15 pennies and 2 nickels, or 10 pennies and 3 nickels or 5 pennies and 4 nickels, or 2 dimes and 1 nickel, or 1 dime and 3 nickels, or 15 nickels and 1 dime.
Miguel has fourteen coins in his pocket He has one more dime than quarters and three more nickels than dimes How many of each coin does he have?
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What is the value of a 1964 nickel?
5 cents. The only nickels to contain silver are the "war nickels" produced from 1943-1945 with a large mintmark over the Monticello. 1964 nickels use the same composition as today, have a high mintage and are easily found in pocket change. They are worth no more than 5 cents. There were over 2 billion nickels minted that year.
What is the value of a 1999 P us nickel?
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What is the value of a 1967 Indian Head nickel?
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