Answer:
Step-by-step explanation:
Let the number of students be x
<u>Initial share was:</u>
<u>With the less students the share is:</u>
- 120 /(x - 8) = 120/x + 0.5
<u>Solve for x:</u>
- 120 /(x - 8) = 120/x + 0.5
- 120x = 120(x - 8) + 0.5x(x - 8)
- 120x = 120x - 960 + 0.5x² - 4x
- 0.5x² - 4x - 960 = 0
- x² - 8x - 1920 = 0
- x² - 8x + 16 = 1936
- (x - 8)² = 1936
- x - 8 = √1936
- x - 8 = 44
- x = 52
52 students
Answer:
3476
Step-by-step explanation:
40x70=2800
40x9=+
360
________
3160
4x70=280
4x9=36
3160+316=3476
Answer: 3.6 liters
Step-by-step explanation:
You know that:
- She uses 6 liters of fruit juice.
- She uses 0.6 as much sparkling water as fruit juice.
Therefore, let's call x the amount of fruit punch she made.
Keeping the above on mind, you can solve the problem by multiplying the 6 liter of fruit juice she uses by 0.6.
Therefore the result is:

Step-by-step explanation:
48/4+[6+{12/2 of 3}-4]+20
48/4+[6+18-4]+20
12+20+20
52