Answer:
18,176
Step-by-step explanation:
Figure out an easier thing to do: 1000 - 2021 = 9,797.
Therefore, our answer will be like 9999999999999999999999997979. Out of all of these digits, there are only 2 that arent nines. We know the amount of digits since it's 10^2021 power. We will have one less since we are subtracting 2021. Therefore, 2020 digits in total. Now we know of those 2020 digits, 2 of them are 7, therefore 2018 of them are 9s. That means do 2018(9) + 2(7) = 14 + 18,162 = 18,176.
Answer:
for the number 13
Step-by-step explanation:
![x = \sqrt{9 { }^ {2} + 6 { }^{2} }](https://tex.z-dn.net/?f=x%20%3D%20%20%20%5Csqrt%7B9%20%7B%20%7D%5E%20%7B2%7D%20%2B%206%20%7B%20%7D%5E%7B2%7D%20%20%7D)
by Pythagoras theorem
x= √81+36
x= √117
punch square root of 117 with a calculator, I don't have one now
Answer:
17.6
Step-by-step explanation:
22 x .80 =17.6
17.6 is 80% of 22 so that would be your answer
Answer:
3.5 pounds for 14 people
Step-by-step explanation:
Given
1 pound = 4 people
Required
Determine the pounds for 14 people
Represent this with x; so, we have:
![1\ pound = 4\ people](https://tex.z-dn.net/?f=1%5C%20pound%20%3D%204%5C%20people)
![x = 14\ people](https://tex.z-dn.net/?f=x%20%3D%2014%5C%20people)
Cross Multiply
![x * 4 = 1 * 14](https://tex.z-dn.net/?f=x%20%2A%204%20%3D%201%20%2A%2014)
![4x = 14](https://tex.z-dn.net/?f=4x%20%3D%2014)
Solve for x
![x = 14/4](https://tex.z-dn.net/?f=x%20%3D%2014%2F4)
![x = 3.5](https://tex.z-dn.net/?f=x%20%3D%203.5)
<em>Hence, 3.5 pounds for 14 people</em>