Answer:
x=12
Step-by-step explanation:
3x=2x+12
3x-2x=12
x=12
We can setup an equation for this.
Boys to Girls = 2:7
Boys = x
Girls = 250+x
Setup the ratio
x:(250+x) = 2:7
x / (250+x) = 2/7
7x = 500+2x
7x-2x = 500
x = 500/5 =100
There are 100 boys at the concert
40*7= 280
You would put 280 over 320
280
-----
320
Take off the zeros since they both have one.
28
---
32
28/32 is your answer.
If you need a simplified version your answer would be 7/8
Answer:
-6 -b
Step-by-step explanation:
I have attached the explanation above. hopefully this will help you