Use an equation of ratios to solve this:
12 cm 9 cm
---------- = ---------
x 8 cm
Cross multiplying, 9x = 96, and x = 32/3 cm (10 2/3 cm).
1 foot = 12 inches.
35 feet x 12 = 420 inches.
Divide total inches by people:
420 / 20 = 21
Each student gets 21 inches of ribbon.
Answer: 45
Step-by-step explanation:
Let x be no of employees
X + 2 x = 135
3x = 135
X = 135/3 = 45