Question 1015545
I love these problems.

Make a picture of buckets. Under one, put "x", and in it put $2.
The second one should have a "80-x" under it (you can't have more than 80 pounds of hard candy), and in it write $3.

The third should have an "80" underneath it, and a $2.20 inside the bucket. Put a + between the first two, and a = between the the second and third buckets.

Now you can make your equation.

x*2 + 3(80-x)=80*2.20

2x + 240 - 3x = 176

2x + 240 = 176 + 3x

240 = 176 + x

64 = x

You need 64 pounds of the $2 candy.

80 - 64 = 16

You need 16 pounds of the $3 candy