SOLUTION: Birdseed costs $0.62 a pound and sunflower seeds cost $0.92 a pound. Angela Leinenbachs' pet store wishes to make a 40-pound mixture of birdseed and sunflower seeds tha
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Question 1164250: Birdseed costs $0.62 a pound and sunflower seeds cost $0.92 a pound. Angela Leinenbachs' pet store wishes to make a 40-pound mixture of birdseed and sunflower seeds that sells for $0.82 per a pound. How many pounds of each type of seed should she use? Answer by ikleyn(52786) (Show Source):
The base equation is
0.92*x + 0.62*(40-x) = 0.82*40.
It says that the cost of ingredients is the same as the cost of the mixture.
Solve the equation for x, which is the amount (in pounds) of sunflower seeds.
Then evaluate (40-x).
Good luck (!)
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In this site, there is entire bunch of lessons covering various types of mixture problems.
A convenient place to quickly observe all these lessons from a "bird flight height" (a top view) is the last lesson
