Well, I would do cross multiplication for this problem
7 25
---- -----
28 x
You would get this equation,
7x = 700
Then, solve that by using division
7x = 700
--- -------
7 7
700 / 7 = 100
Hope this helps
Y = 3
If you'd like an explaination, please, ask.
I just don't want to write all of the steps out -- yey, apathy.
D; mart gets ten dollars for his allowance and then spends ten dollars at the movies
Kn + 4f = 9f
kn + 4f - 4f = 9f - 4f
kn = 5f
kn/5 = 5f/5
kn/5 = f.
f = kn/5 or
f = 1/5 (kn).
