Answer:
C. $6 per hour.
Step-by-step explanation:
Pick a convenient point on the graph. The rate of change is the
y coordinate / x coordinate.
So we pick the point near the top right corner where y = 30 and x = 5 which gives us the answer 30/5 = 6.
One point: draw the line a bit lower such that it touches the circle. A line from the center of the circle to the line will be perpendicular to it.
Two points: draw the line somewhere through the circle. There will be two intersection points.
Three points: can't be done.
The measure of angles are 137.5 degrees and 42.5 degrees
Solution:
Given that two angles are supplementary
Let "a" be the one of supplementary angle
Let "b" be the other supplementary angle
Given that measure of one angle is 10 degree more than three times the other
measure of one angle = 10 + three times the other angle
a = 10 + 3b ---- eqn 1
We know that,
Two Angles are Supplementary when they add up to 180 degrees.
a + b = 180 ---- eqn 2
<em><u>Let us solve eqn 1 and eqn 2 to find values of "a" and "b"</u></em>
Substitute eqn 1 in eqn 2
10 + 3b + b = 180
10 + 4b = 180
4b = 170
<h3>b = 42.5</h3>
From eqn 1,
a = 10 + 3(42.5)
a = 10 + 127.5 = 137.5
<h3>a = 137.5</h3>
Thus the measure of angles are 137.5 degrees and 42.5 degrees
