3x^2-16x=x^2-30
3x^2-x^2-16x+30=0
2x^2-16x+30=0
2*(x^2-8x+15)=0
x^2-8x+15=0
+1 +1
we solve it by completing the square
x^2-2*4x+16=1
(x-4)^2=1
x-4=1 or x-4= -1
+4 +4 +4 +4
x=5 or x= 3 the answer is A
Step-by-step explanation:
ruth is 6 years old
step-by-step explanation:
6 + 24 = 30, so 6/30 = .2
if you do 1/5 it also equals .2, so that is the answer.
15.36 per mile
but forgot to round
i am pretty sure