Answer:
3/x
Step-by-step explanation:
1 wall - x hours
y wall - 3 hours
y = (1*3)/x=3/x
1455
0.03% x 1500 = 45
therefore, 45 students were late
1500 - 45 = 1455 punctual
A AS
proportional
13/2=6.5
19.5/3=6.5
26/4=6.5
32.5/5=6.5
so if all equal the same they are proportional