What is the mean of 5, 10, 10, 15, 15, 20

Mathematics

1 answer:

Andreas93 [3]3 years ago

3 0

Answer:

The mean of this set of numbers is 12.5.

Step-by-step explanation:

first add all of the numbers, we get a product of 75, then divide by the number of numbers (6) and we get an answer of 12.5.

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Multiply (2 – 71)(-1 + 47)

Serhud [2]

(2-7i)(-1+4i)
2x-1=-2
2x4i= 8i
-7ix-1=7i
-7ix4i=-28i^2

so the answer is
-2+8i+7i+28i^2
=28i^2+15i-2

:)

6 0

3 years ago

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Please someone help me

vaieri [72.5K]

Answer:

scale factor: 1/3

Step-by-step explanation:

if you count the unit on the side of triangle ABC it 6 units going up and down and 3 units going left to right. Triangle A'B'C' ends up 2 units up and down and 1 unit left to right so you basically divide by 3, but since its going from bigger to smaller its 1/3

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3 years ago

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A farmer sells 6.8 kilograms of apples and pears at the farmer's market. 2 5 of this weight is apples, and the rest is pears. Ho

Alina [70]

Answer:

weight of pears sold = 4.08 kg

Step-by-step explanation:

total weight of apples and pears = 6.8 kg

2/5 of this weight = apples

this means that if the total weight (6.8 kg) were divided into 5 parts, apples take 2 out of the 5 parts:

∴ weight of apples = 2/5 of total weight