Question

if you mix 10lbs of peanuts costing $1.50 per pound with cashews costing $2.50 per pound, how many pounds of cashews would you need to add so that the resulting mixture has a cost per pound of $1.95? Or, if you mix 10 liters of pure water with 15 liters of a 30% alcohol solution, what is the concentration of the resulting mixture?

Step 1

Since you have submitted two questions, we'll answer the first question. For the second question please submit the question again and specify it.

Let you need x pound of cashew.

So total weight =(10+x) pounds.

Step 2

1 pound peanut costs $1.50

So 10 pounds cost = 1.50x10= $ 15

Step 3

1 pound cashew costs $2.50

x poun...

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