Let’s use y as a replacement for a number. You would do 3y-7 since you multiply by three and take away seven.
Answer:
x=60
Step-by-step explanation:
Hope this helped.
Set up a proportion: 25/100 = 50/n where n = # of teens surveyed
Simplify fraction: 1/4 = 50/n
Cross multiply: n = 200
So 200 teens were surveyed.
