The 8th grade class is putting together bags of candy to sell as a fundraiser tart lemon drops for 4.00 per pound sweet strawberry 13.00 How many pounds t?

Let $$x$$ be the number of pounds of tart lemon drops and $$y$$ be the number of pounds of sweet strawberry. We have the following system of equations:

$$4x + 13y = 80$$

$$x+y=10$$

Solving the second equation for $$x,$$ we get

$$x=10-y$$

Substituting this into the first equation, we get

$$4(10-y)+13y=80$$

$$40-4y+13y=80$$

$$9y=40$$

$$y=\frac{40}{9}$$

Therefore, the 8th grade class should put together

$$10-y=10-\frac{40}{9}=\frac{50}{9}$$

pounds of tart lemon drops and

$$y=\frac{40}{9}$$

pounds of sweet strawberry.