The
![\sqrt{25}](https://tex.z-dn.net/?f=%20%5Csqrt%7B25%7D%20)
= 5, which is a real number, a rational number, a whole number, an integer, and a natural number.
The answer is
B: N, W, Z, Q, R
Answer:
<em>She needs </em><em>77 </em><em>on her last test to earn an 82 for the quarter.</em>
Step-by-step explanation:
Maria scored 72, 97, and 82 on her first three math tests.
She wants to have a mean score of 82 for the quarter.
Let us assume that she must score x on her last test to earn an 82 for the quarter.
So the average score will be,
![=\dfrac{72+97+82+x}{4}](https://tex.z-dn.net/?f=%3D%5Cdfrac%7B72%2B97%2B82%2Bx%7D%7B4%7D)
But the average score is given as 82, so
![\Rightarrow \dfrac{72+97+82+x}{4}=82](https://tex.z-dn.net/?f=%5CRightarrow%20%5Cdfrac%7B72%2B97%2B82%2Bx%7D%7B4%7D%3D82)
![\Rightarrow 72+97+82+x=82\times 4](https://tex.z-dn.net/?f=%5CRightarrow%2072%2B97%2B82%2Bx%3D82%5Ctimes%204)
![\Rightarrow 72+97+82+x=328](https://tex.z-dn.net/?f=%5CRightarrow%2072%2B97%2B82%2Bx%3D328)
![\Rightarrow x=328-72-97-82](https://tex.z-dn.net/?f=%5CRightarrow%20x%3D328-72-97-82)
![\Rightarrow x=77](https://tex.z-dn.net/?f=%5CRightarrow%20x%3D77)
Answer:
- 9 1/4
Step-by-step explanation:
Get a common denominator for the fractions
-5 3/4 - 3 1/2 *2/2
-5 3/4 - 3 2/4
-5 3/4 + -3 2/4
Add them together
-8 5/4
We have an improper fraction
-( 8 + 1 1/4)
- (9 1/4)
- 9 1/4
Answer: 4 1/6
Step-by-step explanation:
By cross multiplying, the answer should be 2.9