SOLUTION: A food store makes product A and B. Product A requires 5 minutes of machine time and $4 for ingredients, and product B requires 2 minutes for machine time and $2 for ingredients. H

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Question 1177503: A food store makes product A and B. Product A requires 5 minutes of machine time and $4 for ingredients, and product B requires 2 minutes for machine time and $2 for ingredients. How many products can be made so that the store spends $440 on ingredients and the machine runs exactly 8 hours a day? Note: I checked my solution, and it was correct; however, the textbook listed a different answer.
My Solutions
5x+2y=480
$4x+$2y=440
x=40
y=140
Check
5(40) + 2(140)=480
200+280=480

Found 2 solutions by ikleyn, lisaniles407:
Answer by ikleyn(52879)   (Show Source):
You can put this solution on YOUR website!
.

                You ALWAYS can and you ALWAYS MUST

to check your solution ON YOUR OWN by substituting the found values into equations

        and checking if the obtained values are identical in both sides.

Without such a check, PERFORMED by YOU, your solution can not be considered as completed.

        SUCH CHECKING is a NECESSARY PART of any solution.

Answer by lisaniles407(1)   (Show Source):
You can put this solution on YOUR website!
Solution:
The formula and solution is correct, as shown under the "My Solutions" area.