SOLUTION: A tea merchant mixes some black tea costing $42 per pound with 4 lb of Earl Grey tea costing $51 per pound. How many pounds of the black tea should be used if the merchant wants a

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A tea merchant mixes some black tea costing $42 per pound with 4 lb of Earl Grey tea costing $51 per pound. How many pounds of the black tea should be used if the merchant wants a       Log On


   

Question 897452: A tea merchant mixes some black tea costing $42 per pound with 4 lb of Earl Grey tea costing $51 per pound. How many pounds of the black tea should be used if the merchant wants a blend that costs between $45 and $48 per pound?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
http://www.algebra.com/my/Two-Part-Mixture-with-one-material-quantity-unknown.lesson?content_action=show_dev

Think of price as a form of concentration in unit of DOLLARS per POUND. Your example is a two-part mixture problem. One material quantity is unknown.