Question 1128475
150(4.47) <-- this is the desired outcome, 150 lbs of 4.47 blend
By mixing x lbs of 5.00 with 150-x lbs of 3.00
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5.00x + 3.00(150-x) = 150(4.47)
5.00x + 450 - 3.00x = 670.50
2.00x = 220.50
x = 110.25
Sarah needs 110.25 lbs of the $5.00 beans and 150-110.25 = 39.75 lbs of the $3.00 beans