Answer:
16
Step-by-step explanation:
Let's denote:
a: number of students wearing sneakers
b: number of students wearing boots
We have:
a + b = 36
a/b = 4/5 (multiply both sides by b => a = 4b/5)
Substitute a = 4b/5 into a + b = 36
=> 4b/5 + b = 36
=> 4b/5 + 5b/5 = 36
=> 9b/5 = 36
=> b/5 = 4
=> b = 20
=> a = 4b/5 = 4(20)/5 = 16
PLOT:
-2, 0.022
-1, 0.067
0, 0.2
1, 0.6
2, 1.8
A.The given value of 9000 for the volume would increase because when moving in units meters to centimeters it would increase from 9000m to 900,000cm
