The correct equation that can be used is ( Option A)
<u>Step-by-step explanation:</u>
Given Equation:
It can be rearranged as follows,
IT can be simplified as,
Dividing the above equation by 2, we will get,
Now we have to divide the coefficient of t by 2, we will get 4 and squaring 4, and add that value on both sides of the equation we will get,
e.g for 15:
a = 3, b is missing, c = 10
A is missing, B is ?, C is 90
Answer:
The mean score of the entire team is 26.909.
Step-by-step explanation:
Given that four batsmen had a mean of 42.5.
Let , where
denote the batsmen.
From the first statement, we have:
Therefore, the sum of the scores of the first four batsmen is 170.
Now, from the second statement we have:
That is, the sum of the scores of the remaining 7 batsmen is 126.
Now, to calculate the average(mean) of the entire team, we add the individual scores and divide it by 11.
which is the required answer.