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Nadya [2.5K]
3 years ago
14

Jimmy has listed the amount of money in his wallet for each of the last ten days. He decides to remove day 7, as that was payday

. How will this affect the mean?
Mathematics
1 answer:
abruzzese [7]3 years ago
8 0

Answer:

The mean will reduce

Step-by-step explanation:

The total amount of money for the ten days divided by number of days will give mean 1, M₁

Removing the value for day seven will reduce the sum of money as it will be for 9 days only.In finding the mean, you will divide by 9 days to get mean M₂

Mean M₂ < M₁

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3 years ago
A hardware store rents vacuum cleaners that customers may use for part or all of a day, up to 12 hours, before returning. The st
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The flat fee that the store charges is $14 and the cost for 7 hours is $56

A linear equation is on the form:

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let f for the total rental cost of a vacuum cleaner for x hours

Using the points (1, 20) and (3, 32) from the table:

f-f_1=\frac{f_2-f_1}{x_2-x_1} (x-x_1)\\\\f-20=\frac{32-20}{3-1} (x-1)\\\\f(x)=6x+14

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The cost for 7 hours is:

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Find out more on linear equation at: brainly.com/question/14323743

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