Answer:
6 pelicans
Step-by-step explanation:
Let x = number of pelicans
Cody saw 4 times as many seagulls as pelicans:
⇒ number of seagulls = 4x
Total of 30 birds:
⇒ seagulls + pelicans = 30
⇒ 4x + x = 30
⇒ 5x = 30
⇒ x = 6
Therefore, there were 6 pelicans (and 24 seagulls).
What is the mean of the data set?
Data set:
393 ; 399 ; 402 ; 402 ; 407 ; 410 ; 424 ; 425 ; 428
393 + 399 + 402 + 402 + 407 + 410 + 424 + 425 + 428 = 3,690
3,690 / 9 = 410
The mean is 410. It is the average of all numbers.
What is the median of the data set?
Data set:
01 ; 03 ; 14 ; 15 ; 22 ; 35 ; 35 ; 43
There are 8 numbers, we need to get the sum middle 2 and divide it by 2 to get the median.
15 + 22 = 37
37/2 = 18.50
The median is 18.50
Answer:
BAF and FAD
Step-by-step explanation:
In order for an angle to have A.F as a side, it must have the letters A.F or FA in its name.
In DAF, the angle is made of rays AD and A.F. In DAB, the angle is made up of rays AD and AB. This is not the correct pair.
In EAF, the angle is made of rays AE and A.F. In CAE, the angle is made up of rays AC and AE. This is not the correct pair.
In BAF, the angle is made of rays AB and A.F. In EAD, the angle is made up of rays AE and AD. This is not the correct pair.
In BAF, the angle is made up of rays AB and A.F. In FAD, the angle is made up of rays A.F and AD. This is the correct pair.
Answer:
67
Step-by-step explanation:
0.71=71%.
2/100+2/100=4/100/4%
So we can subtract 71-4=67.
That tells us that the missing number is 67. Add it all up and you will get 0.71 or 71%
