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How do you work this problem?
The cost, in dollars, of manufacturing x refrigerators is 9000 + 400x. The amount received when selling these x refrigerators is 500x dollars. What is the least number of refrigerators that must be manufactured and sold so that the amount received is at least equal to the manufacturing cost?
2 Answers
- BillLv 78 years agoFavorite Answer
"amount received is at least equal to the manufacturing cost"
means
amount received ≥ manufacturing cost
so
500x ≥ 9000 + 400x
Subtract 400x from both sides
100x ≥ 9000
Divide both sides by 100
x ≥ 90, you need to make & sell at least 90
- 8 years ago
If am not wrong this is the second time you are asking solution for the same problem.
Being specific in what you need will get you specific answers.
