A store mixes Brazilian coffee woth $10 per kilogram and Turkish coffee worth 14 per kilogram. The mixture sells for 11 per kilogram. Find out how much of each should be used to make 588 kilogram?

Question

anonymous · Answer

This will be 2 equations and 2 unknowns.  Let B be your total weight of Brazilian coffee and T be your total weight of Turkish coffee.

One equation tells you the total weight of B + T is equal to 588 kg.

The second equation involves the prices...

anonymous · Answer

10B + 14T = (11)(588)

On the left, this is the price per kg of each coffee multiplied by the weight of that coffee.

On the right, it is the mixture price per kg times the total weight.

Now you can solve 2 equations and 2 unknowns to get B and T.

anonymous · Answer

These are tricky, but they are almost always some sort of similar set-up... take the info given, and find a way to write those 2 equations with 2 variables, then solve.

anonymous · Answer

I cant figure out what the two variables would be.