i believe your answer will be 0.04 or 4/100
OR if you need an equivalent expression, that would be 81/2187
Answer:
The number of teacher who joined the school is 20
Step-by-step explanation:
Teacher : Students = 1 : 16
Number of teachers = 1x
Number of students = 16x
16x = 1600
x = 1600/16
x = 100
Number of teachers at the beginning = 100
Now, after some teachers (let it be y) joining the school,
Teacher : students = 3:40
![\frac{100+y}{1600}=\frac{3}{40}\\\\40*(100+y)=3*1600\\\\4000+40y = 4800\\\\40y=4800-4000\\\\40y=800\\\\y=\frac{800}{40}\\\\y=20](https://tex.z-dn.net/?f=%5Cfrac%7B100%2By%7D%7B1600%7D%3D%5Cfrac%7B3%7D%7B40%7D%5C%5C%5C%5C40%2A%28100%2By%29%3D3%2A1600%5C%5C%5C%5C4000%2B40y%20%3D%204800%5C%5C%5C%5C40y%3D4800-4000%5C%5C%5C%5C40y%3D800%5C%5C%5C%5Cy%3D%5Cfrac%7B800%7D%7B40%7D%5C%5C%5C%5Cy%3D20)
The number of teacher who joined the school is 20
Answer:
Step-by-step explanation:160
The amount of the tip is approximately $7.
The actual number is 6.993, but it says round to the nearest bill. So round up to $7.
<span>Work out the 3/7 part first.
8, 10, 12, 14, 16</span>