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Masteriza [31]
2 years ago
9

The table below shows the number of people in a spinning class each day last week.

Mathematics
1 answer:
Elena-2011 [213]2 years ago
4 0
Well to find the mean you need to add up the total number of people and then divide by the total number of days meaning if there is a total of 105 people, you would divide that by 5 and get 21

13 + 23 + 24 + 31 + 14 = 105

105 / 5 = 21
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jeyben [28]

Answer:

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Step-by-step explanation:

First we need to find how much Anna's swimming charge and Bobie's charge is.

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18x=180                Subtract 7x from both sides

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Now we have the months that satisfy both equations we need to find the total price that matches with it. So we plug it back into both equations.

PA=70+25x                                               PB=250+7x

PA=70+25(10)                                            PB=250+7(10)

PA=70+250                                               PB=250+70

PA=320                                                      PB=320

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2 years ago
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kolezko [41]

Answer: f^{-1} (x) = \frac{x+10}{7}

Step-by-step explanation:

To find the inverse , all we need do is to make x the subject of the formula.

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divide both sides by 7

Therefore:

x = y + 10 / 7 , that is

f^{-1} (x) = \frac{x+10}{7}

8 0
3 years ago
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