You could estimate by doing 600x3=1800
(becasuse of the 0's in 600 it is easier to do 6*3=18 and then add two 0's to the end 1800)
then you simply multiple 640x3=1920
Answer:
The answer is x = -17/6.
Step-by-step explanation:
Given:
5 1/3 + x = 2 1/2 . Using least common denominator.
Now, to solve the equation:
![5\frac{1}{3}+x=2\frac{1}{2}](https://tex.z-dn.net/?f=5%5Cfrac%7B1%7D%7B3%7D%2Bx%3D2%5Cfrac%7B1%7D%7B2%7D)
![=\frac{16}{3} +x=\frac{5}{2}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B16%7D%7B3%7D%20%2Bx%3D%5Cfrac%7B5%7D%7B2%7D)
Subtracting both sides from 16/3 we get:
![x=\frac{5}{2}- \frac{16}{3}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B5%7D%7B2%7D-%20%5Cfrac%7B16%7D%7B3%7D)
Now, the least common denominator of 2 and 3 is 6.
So, we using this we calculate:
![x=\frac{5\times 3-16\times 2}{6}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B5%5Ctimes%203-16%5Ctimes%202%7D%7B6%7D)
![x=\frac{-17}{6}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B-17%7D%7B6%7D)
Therefore, the answer is x = -17/6.
Answer:
Below
Step-by-step explanation:
You can use Pythagorean theorem to find the hypotenuse of a right triangle.
a2 + b2 = c2
The square root of 15 = 3.8729.... (a bunch of other numbers)
4^2 + 3.8729^2 = c2
16 + 15 = 31
Now that you have this, you need to find the square root
The square root of 31 = 5.56775436
Rounding this to the tenth it would be: 5.57
Final answer: C = 5.57
hope this helps! :)
Answer:
since 21 is the amount of cows then you find what 21 divided 7 is with then leads you to 3 so that means you have now multiply 2 by 3 and you end up with 6 horse so the new ratio will now be 21:6
Step-by-step explanation:
Answer:
The volume of sphere is 36π cm³
B is correct.
Step-by-step explanation:
A sphere has a radius of 3 cm.
We need to find the volume of sphere.
Formula:
![V=\dfrac{4}{3}\pi r^3](https://tex.z-dn.net/?f=V%3D%5Cdfrac%7B4%7D%7B3%7D%5Cpi%20r%5E3)
where,
r is radius of sphere.
Put r=3 into formula
![\pi=3.14](https://tex.z-dn.net/?f=%5Cpi%3D3.14)
![V=\dfrac{4}{3}\pi \times 3^3](https://tex.z-dn.net/?f=V%3D%5Cdfrac%7B4%7D%7B3%7D%5Cpi%20%5Ctimes%203%5E3)
![V=36\pi\approx 113\text{ cm}^3](https://tex.z-dn.net/?f=V%3D36%5Cpi%5Capprox%20113%5Ctext%7B%20cm%7D%5E3)
Hence, The volume of sphere is 36π cm³