Male to female is 8:5
So
Let's make male = 8x
female = 5x
8x-400/5x-300=8/3
The 8/3 is because that is what the ratio was after some of the students left
multiply by 5x-300 on both sides
8x-400=(5x-300)*(8/3)
multiply by 3 on both sides to remove the denominator
(8x-400)*3=(5x-300)*8
24x-1200=40x-2400
+2400 +2400
24x+1200=40x
-24x -24x
1200=16x
divide by 16
1200/16=16x/16
75=x
Now to find total we do 8x+5x we said male were 8x and female were 5x
8(75)+5(75)
600+375=975 total students
Answer:
w = 325cm
Step-by-step explanation:
=> here's your solution
=> formula is v = t*w*h
=> v = 5915cm^3
=> t = 91cm
=> we need to find w = ?
=> V = T*W*H
=> w = 5915/(91*5)
=> w = 325cm
hope it helps
Answer:
65
Step-by-step explanation:
180-115=65
It needs to be a total of 180 so just do what I did :)
Answer:
64.5
Step-by-step explanation:
129 ÷ 2 (Because it is half off) = 64.5
