A) x + y = -80
B) 3x = y
x + 3x = -80
4x = -80
x = -20
y = -60
Answer:
-14.54, 2.54
Step-by-step explanation:
Solve by using the quadratic forumla
Let's put it into perspective.
x/(x+5)
If increase by 3:
(x+3)/(x+8) = 3/4
Cross multiply.
4(x+3)=3(x+8)
4x+12 =3x+24
Solve algebraically.
4x-3x = 24-12
x = 12
Therefore, original fraction is:
12/17
Answer:
Step-by-step explanation:
