How many pounds of nut mixture does Jason make?

Question

_{Jason is making a nut mixture to sell at the local farmers’ market. He mixes 4 pounds of pecans with a
nut mixture that is 55% pecans. The resulting mixture is 70% pecans. How many pounds of nut mixture
does Jason make?
[A] 8 lb [B] 4 lb [C] 12 lb [D] 10 lb}

Answer 1

Let's test A.

 

.7(8) = 5.6

 

Before adding 4 pounds, there were 4 pounds.

 

4(.55) = 2.2

 

5.6 - 2.2 ≠ 4 pounds added.

 

Keeeeeep going!