Answer:
r= 0
r= 1
b= -3
x= -3
Step-by-step explanation:
4r-8r=0
-4r=0
r=0
-15=-8r-7r
-15= -15r
r=1
3b+7-1=-3
3b= -3-7+1
3b= -9
b= -9/3
b=-3
3x+1-6x=7
-3x= 7-1
-3x= 6
x= -6/3
x= -3
Answer:
Consistent and independent
Step-by-step explanation:
The only touch at one point and they are not the same line and are not parallel
Answer: step by step equations
Step-by-step explanation:
Answer:
L= 16 m
W= 12 m
Step-by-step explanation:
let us define the parameters of the parallelogram
let the length be L
and the width be W
given that the W= L-4
perimeter= 72 meters
We know that the perimeter of a parallelogram is given as

Substituting W= L-4 for W we have

Divide both sides by 4 we have

From w= L-4 we can find w by setting L= 16
W= 16-4
W= 12 m
It will take them 6 hours to travel 300 miles. How I got my answer: 160 divided by 3.2 = 50 miles per hour, 300 divided by 50 = 6 hours. Hope I could help! :D