Answer:
Infinitely many solutions.
Explanation:
In this case we gonna use ELIMINATION BY ADDITION method.For that first we are gonna eliminate the terms containing ( X ).
Equation no 1:
3x + 3y = 10
Equation no 2:
-9x - 9y = -30
Now multiply equation no 1 with (3 )
3(3x + 3y) = 3(10)
9x + 9y = 30 ( equation no 1 )
Now ADD both the equations
9x + 9y = 30
<u> -9x - 9y =-30</u>
0 = 0
Answer:
242 days
Step-by-step explanation:
1081-597=484
it is increasing by 2wins every day so 484/2=242 days
28! Multiply the 4 rows by the 6 computers per row to get 24 computers, then add the 4 computers in the fifth row to get 28 computers.
Answer:
The answer is A.
Step-by-step explanation:
I took the test
Solution
Question 1:
- The formula for finding the mean score is that of the expected value formula. That is,

- Thus, the mean can be gotten as follows:

The mean score is 7.43
Question 2:
- The more students write the exam, the more the mean score will approach the theoretical mean score.
- The theoretical mean score is calculated above to be 7.43
- Thus, as more students write the quiz, their scores approach 7.43