8:64 = 1:8 (divide both sides by 8)
The new mean is 66.09
<u>Explanation:</u>
Mean weight of 20 students = 65kg
One student with 88kg entered the room.
New mean = ?


The above equation can further be written as:

New mean = 
= 66.09
Therefore, the new mean is 66.09
You can double the product of 9 and 4 to get to the product of 9 and 8
Answer:
A=50 B=40 C=90
Step-by-step explanation:
B is a right angle so its automatically 90 degrees since A=50 and a triangle has to be 180 degrees 90+50= 140, 180-140=40.
Answer:
90,000,000 + 90,000 + 10
I hope this helped!
Step-by-step explanation: