Kevin and randy muise have a jar containing 85 coins, all of which are either quarters or nickels. the total value of the coins in the jar is $ 14.25. how many of each type of coin do they have?

Let the number of quarter be x and that of nickels be y
total number of coins will be:
x+y=85

thus
x=85-yi

total amount of money will be:
0.25x+0.05y=14.25ii

substituting i in ii we get:
0.25(85-y)+0.05y=14.25
21.25-0.25y+0.05y=14.25
7=0.2y
y=7/0.02
y=35

thus
x=85-35=50
the number of quarters was 50 and that of nickels was 35

If there are four friends then each would get, 1.25 or 1 1/4. so this is how i solved 5 ÷ 4 = 1.25 . hope this ; )