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Andreyy89
3 years ago
10

The cost, in dollars, of manufacturing x microwaves is 6,000 + 300x dollars. The amount received when selling these x microwaves

is 700x dollars. What is the least number of microwaves that must be manufactured and sold so that the net profit is $2400?
Mathematics
1 answer:
densk [106]3 years ago
4 0

Answer:

21 microwaves

Step-by-step explanation:

The net profile is equal to the income less the total cost, so the equation to the net profile NP is:

NP = 700x - (6000 + 300x)

Where 700x is the income and (6000+300x) is the cost of manufacturing.

Now, replacing NP by 2400 and solving for x, we get:

2400 = 700x - (6000 + 300x)

2400 = 700x - 6000 - 300x

2400 + 6000 = 400x

8400 = 400x

\frac{8400}{400}=x\\ 21=x

So, the least number of microwaves that must be manufactured and sold so that the net profit is $2400 is equal to 21.

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