A nursery desires to make a grass seed blend by mixing rye seed that sells for $5.25 per pound with bluegrass that sells for $2.00 per pound.

Question

 The final mix is 180 pounds and sells for $3.81 a pound. How much of each type is used?

Answer 1

X + Y = 180

 

5.25X + 2Y = 180*3.81

 

 

5.25X + 2(180 - X) = 180*3.81

 

525X + 200(180-x) = 180*381

 

525x +36000 - 200x = 68580

 

325X = 32580

 

X=100

 

Y=80