Step-by-step explanation:
L= W+5
P= 9W
P= 2L+ 2W
9W= 2(W+5) + 2W
9W= 2W +10 +2W
9W = 4W +10
5W = 10
W = 2
L=7
P= 9(2)
P= 18
A= LW
A= 7 x 2
A= 14
Answer:
adults=24
children=36
x+y=60
400x+250y=18600
x=60-y
400(60-y)+250y=18600
y=36.
solve this expression then u will get the answer for y.
x+36=60
x=24.
30
1) multiply 40 by 75
2) divide by 100