So if the standard deviation is 6 bpm, and the mean = 180, then +1s = 186, +2s = 192, -1s = 174, -2s = 168
a. The % less than 187 are all, including and less than, +1s. So 50% + 34.1% (1s) = 84.1% of the puppies
b. The % between 170 and 187 would be between -1.5s and +1s. So (34.1% × 2) + (13.6/2) = 68.2% + 6.8% = 75% of the puppies
c. Since in a) we said that the % for less than 187 bpm was 84.1%, we just take that % of 500: .841×500 = 420.5, so we'd expect between 420 and 421 puppies
d. 10% of all.puppies will have a heart rate greater than? This is asking what deviation above the mean corresponds to 10%.
This will be around those above around +1.5s, so around 188 bpm
Let x= bread rolls and y = fruit muffins
X+Y=84
and
X-18=(5/6)Y
system of equations, substitute Y because we want X
X-18=(5/6)(84-X)
X-18=70-(5/6)X
(11/6)X=88
X=48 rolls
Hello!
To total amount is 78
Jake caught 22 so
78 - 22 = 56
So Andy and Damon caught 56 between the two of them
Andy caught at least 30
56 - 30 = 26
Damon caught at most 26
And caught at most 36
56 - 36 = 20
Damon caught at least 20
The answer is
The answer is A
Hope this helps!
Answer:
2940
Step-by-step explanation:
Surface Area of a rectangular prism is 2(LW)+2(HW)+2(LH)
We have that the surface area is 1414 where L=c , H=20, W=7
Let's plug all of this in to solve for c:
2(LW)+2(HW)+2(LH)=1414
2(c*7)+2(20*7)+2(c*20)=1414
14c+280+40c=1414
54c+280=1414
54c=1414-280
54c=1134
c=1134/54
c=21
Now the volume of a rectangular prism is V=L*W*H
So plug in our values L=21, H=20, W=7
V=21*20*7=2940
Why is partitioning a directed line segment into a ratio of 1:3, not the same as finding the length of the directed line segment?
The ratio given is part to whole, but fractions compare part to part.
The ratio given is part of the part. The total number of parts in the whole is 3 – 1 = 2.
The ratio given is part of the part. The total number of parts in the whole is 1 + 3 = 4.
The ratio given is part to whole, but the associated fraction is.