Answer:
120 i think
Step-by-step explanation:
i mutilplyed 800 times 0.15 and got 120
Answer:
y= -2/5x+6.2
Step-by-step explanation:
that should be the correct answer
Answer:
Sample is biased
Step-by-step explanation:
If data contains an outlier therefore it is not possible for a single outlier to demonstrate such a dominant outcome for the sample statistics.
It would seem that the sample is biassed, and therefore it contains peoples commuting to work for less than 10 miles. And this can be the consequence.
Although the sample size is 900 and therefore sufficient size is required to come to conclusions.
Answer:
<u>The solution for this system is x = 1/2 and y = 9/2</u>
Step-by-step explanation:
1. We have this system of equations:
x - 3y = -13 and 5x + 7y = 34
2. Let's try to find out the value of x on the first equation:
x - 3y = - 13
x = 3y - 13
3. Now, let's replace x on the second equation for finding y:
5x + 7y = 34
5 (3y - 13) + 7y = 34
15y - 65 + 7y = 34
22y = 34 +65
22y = 99
2y = 9 (Dividing by 11 at both sides)
<u>y = 9/2</u> (Diving by 2 at both sides)
4. Now, let's find out the value of x on the first equation, using the value of y:
x - 3y = - 13
x - 3 (9/2) = - 13
x - 27/2 = -13
x = -13 + 27/2
x = (-26 + 27)/2 (Adding - 13 and 27/2)
<u>x = 1/2</u>
5. Finally, let's prove the values of x and y are correct on the second equation of the system:
5x + 7y = 34
5 (1/2) + 7 (9/2) = 34
5/2 + 63/2 = 34
(5 + 63)/2 = 34
68/2 = 34
<u>34 = 34</u>
<u>It has been proved that x = 1/2 and y = 9/2 are correct</u>
Answer:
False
Step-by-step explanation:
10x3=30
30-20=10
10=20
These equations dont match.
Hence, the equation is false
