Ineed setting up this problem. me out.

  12 pounds

Step-by-step explanation:

One quantity is asked for, so it is convenient to let a variable represent that. We can use x to represent pounds of chocolate. Then the total cost of the mix is ...

  19.30·x + 3.50·18 = 9.82·(x +18) . . . . cost of chocolate + cost of trail mix

  9.48·x = 113.76 . . . . . . simplify, subtract 63+9.82x

  113.76/9.48 = x = 12 . . . . . . divide by the coefficient of x

The owner needs to mix 12 pounds of chocolate. (no rounding necessary)

 12 pounds

Step-by-step explanation:

Use Quantity x Cost. Create a table (multiply across and add down)

  (x + 18)(9.82) = 19.30x + 63

9.82x + 176.76 = 19.30x + 63          distributed 9.82 into x+18

             176.76 = 9.48x + 63         subtracted 9.82x from both sides

             113.76 = 9.48x                 subtracted 63 from both sides

                   12 = x                     divided both sides by 9.48

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.

6/20

step-by-step explanation: