Kevin and randy muise have a jar containing 76 coins, all of which are either quarters or nickels. the total value of the coins in the jar is $13.60. how many of each type of coin do they have?

49 quarters and 27 nickels.

Step-by-step explanation:

This answer can be calculated by trial and error. If you have 76 coins and they are all quarters you would have $19.00, much more than the $13.60 you are looking for.

Next, I tried if there was $12.00 in quarters, which would be 48 quarters. 76 total coins - 48 quarters means that there would be 28 nickels, which is $1.40. This is a total of $13.40.

Next, I tried $12.25 in quarters, which would be 49 quarters. 76-49 = 27 nickels, which is $1.35. This is a total of $13.60, which is the correct answer.

answer: the answer is 40.82

step-by-step explanation: 3.14 x 13(or half of 26) to the power of 2