The correct answer is: C. 247
Add all of the weights
215 + 225 + 285 + 260 + 250 = 1235
Divide the total weight by the number of weights given
1235/5 = 247
-ab-a=-(-4)(-5)-(-4)=-20+4=-16
so the answer is b
The total number of students take speech at rocky valley college is 4806
Average means the "central" value of a set of numbers. To calculate it: add up all the numbers, then divide by how many numbers there are.
Given
Number of students in the rocky valley college = 14418
Student who take speech = 1/3
So, the total number of students who took part in speech is
=> 14418 x 1/3
=> 14418/3
=> 4806
To know more about Average here
brainly.com/question/2906096
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He finished the job at 1:15 P.M.
Step-by-step explanation:
Since we have given that
Number of muffins Diana sold at the bake sale = 336
Number of muffins Bob sold at the bake sale = 287
Now, here we are using the method of estimation i.e. rounding the integers to nearest ones.
By estimation, we get
Number of muffins Diana sold at the bake sale = 340
Number of muffins Bob sold at the bake sale = 290
So,
Difference between them is given by

Hence, Bob sold 50 fewer muffins than Diana.