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Topic: Systems of Linear Equations
Replies: 6   Last Post: Jan 29, 2011 10:13 PM

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 mathematicsstudent Posts: 2 Registered: 1/28/11
Systems of Linear Equations
Posted: Jan 28, 2011 3:33 PM

Hello,

I have to solve this problem:

The manager of a bulk foods establishment sells a trail mix for \$8 per pound and premium cashews for \$15 per pound. The manager wishes to make a 105-pound trail mix-cashew mixture that will sell for \$12 per pound. How many pounds of each should be used?

I figured out that the first equation should be:
X + Y = 105

How do I write the other equation? I tried this, but it didn't work:
.08x + .15Y = 12

If you can guide me along, I would greatly appreciate it!

Thank you.

Date Subject Author
1/28/11 mathematicsstudent
1/28/11 William Elliot
1/29/11 Barb Knox
1/29/11 The Qurqirish Dragon
1/29/11 Barb Knox
1/29/11 Stan Brown
1/29/11 Alexandros Bantis