<span>We will call A to the number of hours traveled by Annie and B the number of hours travelled by Brian. Then Annie traveled 5 times plus 2 hours than Brian, that is
A = 5 * B + 2. And the total number traveled by both of them was 20, so: A + B = 20
Next step is solve both equations putting value of A in the second equation:
5 * B + 2 + B = 20 that is the same than:
6 * B = 18 and:
B = 3 then:
A = 5 * 3 +2
A = 17
The solution is Annie traveled 17 hours and Brian only traveled 3 hours.</span>
Answer:
(a) ![y+1.4=1.9(x-4.5)](https://tex.z-dn.net/?f=y%2B1.4%3D1.9%28x-4.5%29)
(b) ![y-1=2(x+8)](https://tex.z-dn.net/?f=y-1%3D2%28x%2B8%29)
Step-by-step explanation:
If a line passes through a points
with slope m, then the point slope form of the line is
![y-y_1=m(x-x_1)](https://tex.z-dn.net/?f=y-y_1%3Dm%28x-x_1%29)
It is given that the slope of the line is 1.9 and it passes through the point (4.5, -1.4). So, the equation of line in point-slope form is
![y-(-1.4)=1.9(x-4.5)](https://tex.z-dn.net/?f=y-%28-1.4%29%3D1.9%28x-4.5%29)
![y+1.4=1.9(x-4.5)](https://tex.z-dn.net/?f=y%2B1.4%3D1.9%28x-4.5%29)
It is given that the slope of the line is 2 and it passes through the point (-8,1). So, the equation of line in point-slope form is
![y-1=2(x-(-8))](https://tex.z-dn.net/?f=y-1%3D2%28x-%28-8%29%29)
![y-1=2(x+8)](https://tex.z-dn.net/?f=y-1%3D2%28x%2B8%29)
Answer:
undefined root can't be negative value
Answer:
3/12
Step-by-step explanation:
here is the answer