Answer:
x= 4, 2.5(or 5/2)
Step-by-step explanation:
2x²-3x-15=5
-5 -5
2x²-3x-20=0
plug into quadratic equation
(3+13)/4 (3-13)/4
16/4=4 10/4=2.5
Answer:
let W and R represent white toothpaste and red toothpaste represently
n(W)=143
n(R)=135
n(WnR)=70
n( WuR)=?
Now,
n(WuR)=n(W)+n(R)_n(WnR)
=143+135_70
=208
that's all don't forget to write therefore.
Answer:
40/100=2/5
2/5 is the answer.
