A grocer mixes 5 lb of egg noodles costing $ .80/lb with 2 lb of spinach noodles costing $1.50/lb. What will the cost per pound of the mixture be?
[(5 * 0.8) + (2 * 1.5)] / 7 = $_______ per lb.
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To find the cost per pound of the mixture, you need to calculate the total cost and divide it by the total weight of the mixture.
Let's start by calculating the total cost of the egg noodles. The cost of egg noodles is $0.80 per pound, and you have 5 pounds, so the total cost of egg noodles is: $0.80/lb * 5 lb = $4.00.
Next, calculate the total cost of the spinach noodles. The cost of spinach noodles is $1.50 per pound, and you have 2 pounds, so the total cost of spinach noodles is: $1.50/lb * 2 lb = $3.00.
To find the total cost of the mixture, add the total cost of egg noodles and total cost of spinach noodles, $4.00 + $3.00 = $7.00.
Now, let's calculate the total weight of the mixture. You have 5 pounds of egg noodles and 2 pounds of spinach noodles, so the total weight of the mixture is: 5 lb + 2 lb = 7 lb.
Finally, divide the total cost of the mixture by the total weight of the mixture to find the cost per pound of the mixture: $7.00 / 7 lb = $1.00/lb.
Therefore, the cost per pound of the mixture will be $1.00/lb.