SOLUTION: How do I set this type of word problem up? Thanks Joe's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Joe $5.40 per pound, and type B

Question 570065: How do I set this type of word problem up? Thanks
Joe's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Joe $5.40 per pound, and type B coffee costs $4.20 per pound. This month's blend used twice as many pounds of type B coffee as type A, for a total cost of $372.60 . How many pounds of type A coffee were used?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Joe's Coffee Shop makes a blend that is a mixture of two types of coffee.
Type A coffee costs Joe $5.40 per pound, and type B coffee costs $4.20 per pound. This month's blend used twice as many pounds of type B coffee as type A, for a total cost of $372.60 . How many pounds of type A coffee were used?
-----
Equations:
Quantity Eq:::B = 2A
Value Eq:::::5.4A + 4.2B = 372.6
----
Substitute for "B" and solve for "A":
5.4A + 4.2(2A) = 372.6
------
5.4A + 8.4A = 372.6
13.8A = 372.6
A = 27 lbs (amt. of Type A coffee needed)
========
Cheers,
Stan H.
=============
RELATED QUESTIONS
Im having trouble with this word problem and need some assitance. Ritas coffee shop makes (answered by ikleyn)

Problem Page Charmaine's Coffee Shop makes a blend that is a mixture of two types of... (answered by stanbon)

David's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee (answered by ikleyn)

Kira’s coffee shop makes a blend that is a mixture of two types of coffee. Type A... (answered by josgarithmetic)

Justin's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A... (answered by josgarithmetic)

Ravi’s Coffee Shop makes a blend that is a mixture of two types of coffee. Type A... (answered by ikleyn)

Lisa's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee... (answered by josgarithmetic)

Ashley's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A... (answered by josgarithmetic)

Ryan's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee... (answered by josmiceli)