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Question 6
Kim is a driving instructor. Kim charges £30 for a one-hour lesson. Her fixed costs are £14,000 per annum. The variable cost for a one-hour lesson is £6. How many o... show full transcript
Step 1
Answer
To find out how many lessons Kim needs to give to make a profit, first, we need to calculate the total costs, which include fixed and variable costs.
The fixed costs are £14,000 per annum, and the variable cost per lesson is £6. If Kim gives x
lessons, then the total variable costs will be 6x
.
Thus, the total cost can be expressed as:
[ Total \ Cost = Fixed \ Cost + Variable \ Cost = 14000 + 6x ]
Step 2
Step 3
Step 4
Answer
Now, we solve this inequality step by step:
6x
from both sides:
[
30x - 6x > 14000
]
[
24x > 14000
]Since x
must be a whole number, Kim needs to give at least 584 lessons to start making a profit.
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