(2x-15) + 11x = 180
Combine your like terms in get
13x - 15 = 180
Add 15 on both sides
13x - 15 = 180
+15 + 15
13x = 195
Divide each side by 13 and get
x = 15
The percentage of male students is 37.5%
- There for every five girls there are three boys.
- That is eight students per.
- I took two hundred and divided it by eight to get twenty-five.
- I got twenty five, if you take twenty-five times three you get seventy-five & if you take twenty-five times five you get one hundred twenty-five.
- Add those two products and you'll have your two hundred.
- So, take seventy-five over two hundred to get thirty-seven and a half.
- Divide that by one hundred to get the ratio.
- It comes out to 37.5%
Answer: 
Step-by-step explanation:
you would multiply by 3 on both sides to get the division to go away.
then subtract 8 from both sides.
then you have your answer
