Answer: y1 is y coordinate
m is the slope
x1 is the x coordinate
A. y = 3x -5
B. y = 7x + 2
Step-by-step explanation:
Step-by-step explanation:
-5/2
-2
-1.75
-1
1/5
1.75
9/4
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Answer:
The combined average is 94%
Step-by-step explanation:
for first period, number of students =40
average =96%
for second period, no of students =20
average =90%
but
let =sum of students for the first period
=sum of students for the second period
for first period;
for second period,
therefore the combined average =
that is
so combined average is 94%