Nick has 1 1/2 cups of raisins in a bowl. He adds 7 3/4 cups of peanuts to fill the bowl for a party. Which equation can be used to find the number of cups of ingredients in the bowl?
a
1 1/2 + 7 3/4 = 9 1/4
b
7 3/4 - 1 1/2 = 6 1/4
c
-7 3/4 + 1 1/2 = -6 1/4
d
-1 1/2 - 7 3/4 = -9 1/4