Answer:
7/16
Step-by-step explanation:
Answer:
y = 3x + 62
Step-by-step explanation:
Using the points :
(0, 62) and (6, 80)
Equation of trend line is in the form:
y = mx + c
Where m = slope ; c = intercept
Slope (m) = (y2 - y1) / (x2 - x1)
m = (80 - 62) / (6 - 0)
m = 18 / 6
m = 3
Intercept, c = value of y when x = 0
From (0, 62)
x = 0 ; y = 62
Then c = 62
Hence,
y = 3x + 62
Answer:
Pic 1: 
Pic 2: 
Step-by-step explanation:
<u>Picture 1:</u>
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First, add the 2x and x together for 3x
Then add 3 to both sides of the equation
Finally, divide each side by 3.
<u>Picture 2:</u>
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First, add 7x and x together for 8x
Then, minus 20 from both sides of the equation
Finally, divide each side by 8.
X − 4y = 7
5x + 9y = 6
5x − 20y = 35 //1st * 5
5x + 9y = 6
5x +9y - 5x + 20y = 6 - 35 //2nd - 1st
5x + 9y = 6
29y=-29
5x=6-9y
y=-1 //1st : 29
5x=6-9*(-1)
y=-1
x=15:5 //2nd : 5
y=-1
x=3
check:
for x=3 and y=-1 there is:
x − 4y = 7 is 3 − 4*(-1) = 7 is 7=7 ok
5x + 9y = 6 is 15-9=6 is 6=6 ok
answer: (3;-1) represents the solution.
Answer:
-4+10v
Step-by-step explanation: