Answer:
Step-by-step explanation:
P=2l+2w
28=2l+2w
2l=2w-28
l = (2w-28)/2
l =2(w-14)/2
l = w-14
Your answer is 2,200 pupils.
If 990 is equal to 45% of the total amount of pupils, then to find 1% we can divide both 45 and 990 by 45.
990 ÷ 45 = 22, which is 1%, so then we multiply 22 by 100 to get 100% of the pupils, which gives us 2,200.
I hope this helps!
The answer is: "
" .
________________________________________________________5.4 % = 5.4 / 100 = 54/1000 = (54÷2) / (1000÷2) = "
" .
OR:5.4 % = 5.4 / 100 = 5.4 ÷ 100 = 0.054 =
54/1000 = (54÷2) / (1000÷2)
= "
" .
________________________________________________________