Answer: Answer is x = 5, y = -3
(5, -3)
Step-by-step explanation: The instruction is to use the substitution method, and from the first equation,
y = x - 8
This means we replace the value of y in the second equation with x - 8. Hence;
2x + 3y = 1 can now be re-written as
2x + 3(x - 8) = 1
2x + 3x - 24) = 1
5x - 24 = 1
Add 24 to both sides of the equation
5x -24 + 24 = 1 + 24
5x = 25
Divide both sides of the equation by 5
x = 5
Having calculated x as 5, we can now substitute for the value of x in the first equation
y = x - 8 now becomes
y = 5 -8
y = -3
Answer: $5115
Step-by-step explanation:
The following information can be gotten from the question:
Mean = 6800
Standard deviation = 2500
We will then find the Z score of the 25th percentile which will be -0.674.
Therefore, the cutoff for the salary that corresponds to the lower 25% of all salaries will be:
= 6800 - 0.674 × 2500
= 6800 - 1685
= 5115
The cutoff is $5115
Ok first draw a line for the S part
Then from one end of the line draw a long line for 25 degrees
And draw 30 degrees.
The two lines would join if you draw the large enough and create the third angle
-2.6 , -2.16 , 0.58 , 0.8 , 5.1
