Answer:
14
Step-by-step explanation:
140 points = 100%
140 / 10 = 14 = 10%
3 feet is equal to 1 inch if she measured 3 inches to equal 9 feet
Answer:
Step-by-step explanation:
For this case we have that by definition, the equation of a line in the slope-intersection form is given by:

Where:
m: It's the slope
b: It is the cut-off point with the y axis
On the other hand we have that if two lines are perpendicular, then the product of their slopes is -1. So:

The given line is:

So we have:

We find 

So, a line perpendicular to the one given is of the form:

We substitute the given point to find "b":

Finally we have:

In point-slope form we have:

ANswer:
