Cam had $18.90 to spend on groceries after buying 10 grapefruits she had $3.90 left if each grapefruit cost the same amount what is the price of one grapefruit
Let the price of one grapefruit be x.
Cam spent 10x on grapefruits and had $3.90 left,
So, 10x + $3.90 = $18.90
10x = $15
Now dividing by 10 on both sides
x = $1.50
Therefore, the price of one grapefruit is $1.50.