y = -2x - 9 ----------- 1
y = 3x + 1 -------------- 2
Step 1
Substitute y from equation 1 to equation 2.
y = -2x - 9
3x + 1 = -2x - 9
Step 2
Collect like terms
3x + 2x = - 9 - 1
5x = -10
Step 3
Divide through by 5
x = -10/5
x = -2
Step 4
Substitute x in equation 2 to find y.
y = 3x + 1
y = 3(-2) + 1
y = -6 + 1
y = -5
So the solution is (-2, -5)
I think you have to find the value of x and y before u can simplify it.
Answer:
Step-by-step explanation:
Remove brackets:
Group the similar terms together:
Subtract 16 from both sides:
Divide both sides by -31:
Answer:
The correct option is:
Company B is more likely; its z-score of 2.77 is closer to the mean than Company A's z-score of 2.82.
Explanation:
The company's whose z score would be closer to 0 would be more likely to produce the package of 43 throat lozenges
The z score for the company A is:
While the z score for the company B is:
Since the z score of company B is closer to 0 than the company A, therefore the company is more likely
So we know the slope of the equation because the slope of two parallel lines are the same:
y = -3/2x + b
9 = -3/2( -16 ) + b
9 = 24 + b
b = -15
so the equation of the new line is y = -3/2x - 15