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Yuri [45]
3 years ago
9

Please Help me! 20 pts. n i will mark you as brainliest!

Mathematics
2 answers:
Jobisdone [24]3 years ago
8 0

Answer:

Length 10, Width 20, Area 200

Step-by-step explanation:

Pavel [41]3 years ago
4 0

Answer:

The length is 20 meters, the width is 10 meters,  and the area is 200 square meters. Although the only thing im mixed up with is whats length and height but I can explain my reasoning.

Step-by-step explanation:

The scale for the problem is 4cm:5m which means for every 4 centimeters there is 5 meters. With that said 16cm = 20m and 8cm = 10m. The formula for finding area is lxw. So 20 x 10 = 200.

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The age of the father is 57 years old

<h3>Calculating mean of a population</h3>

Total age = Average age x Population

Average of the four children = 15

Population = 4

Total age of the four children = 15 x 4

Total age of the four children = 60 years

If the parents are added:

Population = 6

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Total age = 25 x 6

Total age = 150 years

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Total age of the parents = 110 years

The father is 4 years older than his wife

Let the age of the father be x

The age of the wife = x - 4

x + x - 4 = 110

2x = 114

x = 114/2

x = 57

Therefore, the age of the father is 57 years old

Learn more on The mean of numbers here: brainly.com/question/20118982

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