A teacher figures out her students’ final grade in the class by finding the mean of the following three
2 answers:
Answer:
95%
Step-by-step explanation:
To find the average, we add up all the scores and divide by 3.
We know 2 of the scores, but one is unknown, we will call it x.
Jenny wants the average to be 85, so we can set the expression equal to 85
=85
Multiply by 3 on both sides
160+x=255
Subtract 160 from both sides
x=95
She will have to score a 95 to pass the class with an 85 average
Hope this helps!
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Answer:
See image below
Step-by-step explanation:
We want to draw a line through all points with a y-coordinate of -3; first let's observe some of these points: (-3,-3), (0,-3), (1,-3), (10,-3) are all part of this line.
We can see that what all these points have in common are that they have -3 in the y axis. Therefore, the graph of the line would be y = -3
This line is drawn in the graph below.
