Kevin and Randy Muise have a jar containing 41 coins, all of which are either quarters or nickels. The total value of the coins in the jar is $7.45. How many of each type of coin do they have?
The jar contains
The jar contains
quarters.
nickels

There are 27 quarters and 14 nickles

Step-by-step explanation:

Step 1:  Make a system of equations

n + q = 41

0.05n + 0.25q = 7.45

Step 2:  Solve for n in the first equation

n + q - q = 41 - q

n = 41 - q

Step 3:  Plug in n into the second equation

0.05(41 - q) + 0.25q = 7.45

2.05 - 0.05q + 0.25q - 2.05 = 7.45 - 2.05

0.2q / 0.2 = 5.4 / 0.2

q = 27

Step 4:  Find the amount of nickels

n = 41 - 27

n = 14

 There are 27 quarters and 14 nickles

its 4 because 2 times 2 is 4, if you double the number two you get four

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

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