Answer:
3.072×10^-1
Step-by-step explanation:
please mark me as brainlest
A: 39 over 50000
b: 20003 over 10000
I believe the answer is 10 girls I'm pretty sure it is 10 girls
Answer:
Age of Mark is 25 years.
Step-by-step explanation:
Let the current age of Mark = x years
After 20 years, age of Mark=(x+20) years
10 years ago,age of Mark was (x-10) years.
In 20 years Mark will be three times as old as he was 10 years ago.
=> ![\[(x+20) = 3*(x-10)\]](https://tex.z-dn.net/?f=%5C%5B%28x%2B20%29%20%3D%203%2A%28x-10%29%5C%5D)
=> ![\[(x+20) = 3x-30\]](https://tex.z-dn.net/?f=%5C%5B%28x%2B20%29%20%3D%203x-30%5C%5D)
=> ![\[(3x-x) = 30+20\]](https://tex.z-dn.net/?f=%5C%5B%283x-x%29%20%3D%2030%2B20%5C%5D)
=> ![\[(2x) = 50\]](https://tex.z-dn.net/?f=%5C%5B%282x%29%20%3D%2050%5C%5D)
=> ![\[x = \frac{50}{2}\]](https://tex.z-dn.net/?f=%5C%5Bx%20%3D%20%5Cfrac%7B50%7D%7B2%7D%5C%5D)
=> ![\[x = 25\]](https://tex.z-dn.net/?f=%5C%5Bx%20%3D%2025%5C%5D)
Answer:
7.0 and 16.0
Step-by-step explanation:
its a whole number so you can't have a 0 then a number after that it will not be a whole number therefore that is the answer