Not sure what the question is.
<u>9</u>+2x=18
Subtract 9 from each side then...
<u>2</u>x=9
Divide each side by 2 and you'll have that x is....
x=4.5
Not sure if I answered correctly.
Answer:
![c=\frac{3}{5}(n)+2.5](https://tex.z-dn.net/?f=c%3D%5Cfrac%7B3%7D%7B5%7D%28n%29%2B2.5)
Step-by-step explanation:
see the attached figure to better understand the problem
Let
c -----> the cost of some taxi journeys
n ----> the number of miles
we know that
The graph is a line
The equation of a line in slope intercept form is
![c=m(n)+b](https://tex.z-dn.net/?f=c%3Dm%28n%29%2Bb)
where
m is the slope
b is the c-intercept (value of c when the value of n is equal to zero)
Observing the graph we have the points
(0,2.5), (5,5.5)
<em>Find the slope</em>
The formula to calculate the slope between two points is equal to
substitute the values
we have
-----> because the point (0,2.5) is the c-intercept
substitute in the equation of slope-intercept form
![c=\frac{3}{5}(n)+2.5](https://tex.z-dn.net/?f=c%3D%5Cfrac%7B3%7D%7B5%7D%28n%29%2B2.5)
Answer:
?
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
8x-6>12+2x
-2x -2x
6x-6>12
+6 +6
6x > 18
6x÷6. 18÷6
x=3