I have it. Let me just type it in.
Answer:
Neil is 28yrs and his brother is 42yrs old
Step-by-step explanation:
Let r = Neil's brother's age at birth time
2r = Neil's age now
This means that his brother's current age is 3r
So when Neil = 3r old
His brother = 4r old
3r + 4r = 98
7r = 98
r = 14
So their ages now
Neil's brother = 3*14= 42
Neil = 2*14= 28.
Answer:
I think the interquartile range is 2.5
Step-by-step explanation:
Interquartile range = Q3-Q1.
Area of rectangle is ![360cm^{2}](https://tex.z-dn.net/?f=360cm%5E%7B2%7D)
<u>Explanation:
</u>
Given width = 15cm ,
Perimeter of rectangle = 2x(length + width)
According to the question,
![78cm = 2X(l + 15cm)\\39cm = l+15cm\\ l = 24cm](https://tex.z-dn.net/?f=78cm%20%3D%202X%28l%20%2B%2015cm%29%5C%5C39cm%20%3D%20l%2B15cm%5C%5C%20l%20%3D%2024cm)
Hence,
Area = length X width = ![24X15 = 360cm^{2}](https://tex.z-dn.net/?f=24X15%20%3D%20360cm%5E%7B2%7D)
Therefore,
Area of rectangle is ![360cm^{2}](https://tex.z-dn.net/?f=360cm%5E%7B2%7D)