The nuthouse has 20 lb of mixed

Question

Cashews and pecans worth $8.10 per pound. cashews alone sell for $8.50 per pound and pecans sell for $7.50 per pound. how many pounds of each are in the mixture? 

Answer 1

c represents the amount of cashews

20 - c represents the amount of pecans

8.50c + 7.50(20 - c) = 8.10(20)

 

Can you solve for c and answer?

 

 

Answer 2

The equations for this type of problem are

 

C + P = 20

8.5C + 7.5P = 8.1*20

 

first solve first equation for C = 20 -P

 

substitute new value of C into second equation

 

8.5(20-P) + 7.5P = 162

 

Can you solve for P and C now?