PROBLEM
A clock business has fixed costs of $7000. Find the average cost per clock for x=100,1000,10,000: x0.4x+7000.
STEP 1
Assumptions1. The weekly fixed costs are 7000.Theaveragecostperclockforthebusinesstomanufacturexclocksisdescribedbythefunction\frac{0.4x +7000}{x}$
3. We need to find the average cost when x=100,1000, and 10,000
STEP 2
First, let's find the average cost when x=100. We can do this by substituting x=100 into the given function.
Averagecost=1000.4×100+7000
STEP 3
Calculate the average cost when x=100.
Average\, cost = \frac{40 +7000}{100} = \($\)70.40
STEP 4
Next, let's find the average cost when x=1000. We can do this by substituting x=1000 into the given function.
Averagecost=10000.4×1000+7000
STEP 5
Calculate the average cost when x=1000.
Average\, cost = \frac{400 +7000}{1000} = \($\)7.40
STEP 6
Finally, let's find the average cost when x=10,000. We can do this by substituting x=10,000 into the given function.
Averagecost=10,0000.4×10,000+7000
SOLUTION
Calculate the average cost when x=10,000.
Average\, cost = \frac{4000 +7000}{10,000} = \($\)1.10The average cost when manufacturing100 clocks is 70.40perclock,whenmanufacturing1000clocksit′s7.40 per clock, and when manufacturing10,000 clocks it's $1.10 per clock.
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