Answer:
![-\frac{7}{8}](https://tex.z-dn.net/?f=-%5Cfrac%7B7%7D%7B8%7D)
Step-by-step explanation:
1) Use this rule: ![a \times \frac{b}{c} =\frac{ab}{c} .](https://tex.z-dn.net/?f=a%20%5Ctimes%20%5Cfrac%7Bb%7D%7Bc%7D%20%3D%5Cfrac%7Bab%7D%7Bc%7D%20.)
![\frac{6\times3}{8} -5\times\frac{5}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B6%5Ctimes3%7D%7B8%7D%20-5%5Ctimes%5Cfrac%7B5%7D%7B8%7D)
2) Simplify 6 × 3 to 18.
![\frac{18}{8} -5\times\frac{5}8}](https://tex.z-dn.net/?f=%5Cfrac%7B18%7D%7B8%7D%20-5%5Ctimes%5Cfrac%7B5%7D8%7D)
3) Simplify
to
.
![\frac{9}{4} -5\times\frac{5}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B9%7D%7B4%7D%20-5%5Ctimes%5Cfrac%7B5%7D%7B8%7D)
4) Use this rule: ![a\times\frac{b}{c}=\frac{ab}{c} .](https://tex.z-dn.net/?f=a%5Ctimes%5Cfrac%7Bb%7D%7Bc%7D%3D%5Cfrac%7Bab%7D%7Bc%7D%20.)
![\frac{9}{4} -\frac{5\times5}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B9%7D%7B4%7D%20-%5Cfrac%7B5%5Ctimes5%7D%7B8%7D)
5) Simplify 5 × 5 to 25.
![\frac{9}{4} -\frac{25}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B9%7D%7B4%7D%20-%5Cfrac%7B25%7D%7B8%7D)
6) Simplify.
![-\frac{7}{8}](https://tex.z-dn.net/?f=-%5Cfrac%7B7%7D%7B8%7D)
Answer:
False!
Step-by-step explanation:It is not possible.
Elementary school:
27% = 207/100 x 27 = 55.89 = 56 teachers
Middle school:
35% = 207/100 x 35 = 72.45 = 72 teachers
High school:
38% = 207/100 x 38 = 78.66 = 79 teachers
Answer:
1. 47.38
2. 6
3. 18.57
4. 114.9
5. 75.01
Step-by-step explanation:
Cosx = 3/5.8
x = cos^-1 (3/5.8) = 58.85