Question

How many pounds of walnuts that cost $7.60 per pound must be mixed with 6 pounds of cashews that costs $12 per pound to make a mixture of nuts that costs $9.25 per pound?
Select one:
a. 10 pounds
b. 12 pounds
c. 10.5 pounds
d. 8 pounds

Answer 1

The final cost is = Total money / Total mass of nuts = 9.25
The money for the cashews is, 6Pounds X (12$ / Pound) = 72$
The money for the Walnuts is, xPounds X(7.6$ / Pound) = 7.6x$
Total Money is: 7.6x$ + 72$
Total mass is: Mass of cashews + Mass of Walnuts = 6 + x
Total Money / Total mass = 9.25 = (7.6x$ + 72$) / (6 + x)
Solving the equation: 9.25(6+x) = 7.6x + 72 Note: "$" is not necesary
Then 55.5 + 9.25x = 7.6x +72
9.25x -7.6x = 72 - 55.5
1.65x = 16.5 then x= 10 Pounds

Answer 2

thnx(:

Answer 3

Your Welcome:DDDD