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jeka57 [31]
3 years ago
12

Consider the following marginal cost function. a. Find the additional cost incurred in dollars when production is increased from

100 units to 150 units. b. Find the additional cost incurred in dollars when production is increased from 500 units to 550 units. C′​(x)=4000−0.4x
Business
1 answer:
weqwewe [10]3 years ago
4 0

Answer:   (a) $197,500

(b) $ 189,500

Explanation:

Given : The marginal cost function : C′​(x)=4000−0.4x

To find the cost function, we need to integrate the above function with respect to x.

Now, the additional cost incurred in dollars when production is increased from 100 units to 150 units will be:-

\int^{150}_{100}\ C'(x)\ dx\\\\=\int^{150}_{100} (4000-0.4x)\ dx\\\\=[4000x-\dfrac{0.4x^2}{2}]^{150}_{100}\\\\=[4000(150)-\dfrac{0.4(150)^2}{2}-4000(100)+\dfrac{0.4(100)^2}{2}]\\\\=[600000-4500-400000+2000]\\\\=197500

Hence, the additional cost incurred in dollars when production is increased from 100 units to 150 units= $197,500

Similarly,  the additional cost incurred in dollars when production is increased from 500 units to 550 units :-

\int^{550}_{500}\ C'(x)\ dx\\\\=\int^{550}_{500} (4000-0.4x)\ dx\\\\=[4000x-\dfrac{0.4x^2}{2}]^{550}_{500}\\\\=[4000(550)-\dfrac{0.4(550)^2}{2}-4000(500)+\dfrac{0.4(500)^2}{2}]\\\\=[2200000-60500-2000000+50000]\\\\=189,500

Hence, the additional cost incurred in dollars when production is increased from 500 units to 550 units = $ 189,500

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