3 years ago

Find the median, first quartile, third quartile, and interquartile range of the data.

Mathematics

1 answer:

Sophie [7]3 years ago

4 0

The median is 18 because there is nine digits and if you slit them into 2 the number 18 would be in the middle

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Three years ago, Marry was three times as old as his brother. Five years from now he will be twice as old as his brother. How is

chubhunter [2.5K]

3 years ago:
m - 3 = 3(b - 3)
m - 3 = 3b - 9
m + 6 = 3b
m/3 + 2 = b

5 years from now:
m + 5 = 2(b + 5)
m + 5 = 2b + 10
m - 5 = 2b
m/2 - 5/2 = b

combine:
m/3 + 2 = m/2 - 5/2

1. multiply by 6
2m + 12 = 3m - 15

2. add 15 - 2m to both sides
27 = m

Marry is 27 years old.

5 0

3 years ago

You and your friend are standing back-to-back. Your friend runs 16 feet forward and then 12 feet right. At the same time, you ru

Llana [10]

I show an example in the picture below. If you know how to solve with Pythagorean theorem this problem should be fairly easy. All you have to do is make 2 triangles and solve for C. Once you solve for C for both triangles you should get 20 for one answer and 15 for the other answer. Then all you do is just add them together so your answer should be 35 feet.