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2 years ago

PERSON GETS 15 POINTZ PLZ HURRY The mean of the list n, n + 3, n+4, n+5, n+6, n+8, n+10, n + 12, n+15 is 11. What is the median?

Mathematics

2 answers:

7nadin3 [17]2 years ago

7 0

Answer:

Step-by-step explanation:

To find the value of n we can write:

(n + n + 3 + n + 4 + n + 5 + n + 6 + n + 8 + n + 10 + n + 12 + n + 15) / 9 = 11

(9n + 63) / 9 = 11

9n + 63 = 99

9n = 36

n = 4

The median is n + 6 which is 4 + 6 = 10.

erastova [34]2 years ago

5 0

Answer:

median: 10

Step-by-step explanation:

There are 9n, and the numbers add up to 63, and there are a total of 9 terms.

The equation is (9n+63)/9=11.

(9n+63)/9=11

9n+63=99

9n=36

n=4

To find the median, eliminate the terms

The middle term is n+6

n+6

4+6

So the median is 10

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Paha777 [63]

<u>Answer:</u>

Speed of the boat in still water = 6.125 miles/hour

<u>Step-by-step explanation:</u>

We are given that a boat travels 33 miles downstream in 4 hours and the return trip takes the boat 7 hours.

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___________________________

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