Answer:
850
Step-by-step explanation:
To get my answer, I divided 150 by 17. (The survey of people and the # of them under 21) I got 8.8235. Next, I divided 7500 (the total of people in the stadium) by 8.8235 (the decimal that I got above) I got 850.
To check my answer, I divided 7500 by 850 and got 8.8235, the same ratio as the survey.
Answer:
C is the answer
C ) y = 
Step-by-step explanation:
2 y - x = 
( -y + 1)
(2 y - x ) 4 = 3 ( -y +1)
8 y - 4 x = -3 y + 3
8 y + 3 y = 4 x + 3
11 y = 4 x + 3
∴ y = 
Answer:
-6.
Step-by-step explanation:
y = x - 6
y = 6x - 19
To eliminate x the first equation should be multiplied by -6 giving:
-6y = -6x + 36
Adding this to the second equation will eliminate x.
The only of these that is a proper set of ordered pairs for this equations is A) (0,-4) (1,2) (3,14)
In order to prove this, you need to put each ordered pair into the equation and prove that it is a true statement. Below are the examples of this for A.
(0, -4)
y = 6x - 4
-4 = 6(0) - 4
-4 = 0 - 4
-4 = -4 (TRUE)
(1, 2)
y = 6x - 4
2 = 6(1) - 4
2 = 6 - 4
2 = 2 (TRUE)
(3, 14)
y = 6x - 4
14 = 6(3) - 4
14 = 18 - 4
14 = 14 (TRUE)
Therefore, each of these ordered pairs works in the equation.
The answer to this question is 6.75
