SOLUTION: A merchant has coffee worth $50 a pound that she wishes to mix with 70 pounds of coffee worth $80 a pound to get a mixture that can be sold for $70 a pound. How many pounds of the

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: A merchant has coffee worth $50 a pound that she wishes to mix with 70 pounds of coffee worth $80 a pound to get a mixture that can be sold for $70 a pound. How many pounds of the       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 675591: A merchant has coffee worth $50 a pound that she wishes to mix with 70 pounds of coffee worth $80 a pound to get a mixture that can be sold for $70 a pound. How many pounds of the $50 coffee should be used?
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
A merchant has coffee worth $50 a pound that she wishes to mix with 70 pounds of coffee worth $80 a pound to get a mixture that can be sold for $70 a pound. How many pounds of the $50 coffee should be used?
**
let x=amt of $50 coffee should be used
50x+80*70=70(x+70)
50x+5600=70x+4900
20x=700
x=35
amt of $50 coffee should be used=35 pounds