The idea is to write two equations, one for the number of coins, one for the amount of money. Then solve the equations.Assuming "n" is the number of nickels, and "q" the number of quarters, the equations for the coins, of course, is quite simply:
n + q = 64
And the equation for the money (I'll use cents; you can just as well use dollars if you prefer):
5n + 25q = 740
You can solve the first equation for "n", then replace that in the second equation.
21 quarters and 43 nickels.
In order to eliminate the decimal point, let us work with cents. So, let $ 4.50 = 450 cents. If the number of nickels is x, then the value of x nickels is 5x cents. Since the number of dimes is twice the number of nickels, then we can write the number of dimes as 2x, and the value of 2x dimes as 10(2x) or 20x cents. So we have: 5x + 20x = 450 25x = 450 divide by 25 to both sides x = 18 the number of nickels 2x = 2 x 18 2x = 36 the number of dimes Thus, Cameron has 18 nickels and 36 dimes. Check: 18 nickels = 18 x 5 cents = 90 cents or $ 0.90 36 dimes = 36 x 10 cents = 360 cents or $ 3.60 0.90 + 3.60 = 4.50? 4.50 = 4.50 True
Ralph is a good leader (along with the help of Piggy) who tries to keep the boys on task and finds ways of allowing them to get home faster (example; the fire). Ralph has a lot of power and influence, this is partially because of his good looks. He is not as savage as most of the boys. On the other hand Jack doesn't do things for the good of the group, he does whatever will fill his gut. He primarily represents savagery, violence and has a desire for power. By the middle of the book he casts off moral restraints.
Let X equal the number of quarters X * 25 is the value of the quarters ((X+8) * 5) is the value of the nickels25X + 5X + 40 = 610 so 30X + 40 = 610 .subtract 40 from both sides , divide both sides by 30X = 19There are 19 quarters and 27 nickels in the piggy bank
117 nickles
7
He has 165 cents.
117 Alternative method: If all the coins were dimes he would have $41.90; He is $5.85 short of that figure Every 5c short represents 1 nickel replacing a dime 585/5 = 117 nickels (and 302 dimes).
7
shake the piggy bank until all the coins get out.
The number of coins that can fit into an empty piggy bank depends on the size and capacity of the piggy bank, as well as the size and denomination of the coins. Generally, you could estimate by counting the volume of the coins and comparing it to the volume of the piggy bank.
725 coins
If n is the number of nickels and d the number of dimes, then the equations are:n + d = 160 (total number of coins) 5n + 10d = 1050 (total value). And I have thought through to the answer.
yes
Some piggy banks may have a magnetic feature to help secure coins in place, but not all piggy banks are magnetic. Magnetic piggy banks are designed with a magnetic base that attracts metal coins to keep them in place.