Answer:
To find the circumference
diameter x 3.14 = circumference
We can undo the multiplication and divide to get the diameter
37.68 /3.14 = 12
diameter / 2= radius
12 / 2 = 6
the radius is 6
radius x radius x pi = area
6 x 6 x 3.14 = 113.04
113.04 is the answer
Hope this helps
Step-by-step explanation:
Answer:
are there no options
Step-by-step explanation:
?
Answer:
48
Step-by-step explanation:
If 2/3 are blue, 1/3 are not, and if 5/8 of the rest are blue, 3/8 are red.
(3/8)(1/3) = 3/24 = 1/8
So, the 6 red boats are 1/8 of the total. If 1/8 is 6, then 8/8 is 48 total boats.
(1/8)b = 6
b = 6(8)
b = 48
I hope this helps!! :D
Part A
P = perimeter of square
P = add up the four sides
P = N+N+N+N
P = 4*N
where N is the side length of the square
The perimeter of the square is at most 22 ft, which means 22 ft is the largest the perimeter can be. Think of it as the ceiling.
So P = 22 or P < 22. We can combine those two ideas to get
(P is less than or equal to 22)
Replace P with 4N and solve for N
divide both sides by 4
The side length N can be 5.5 ft or smaller
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Part B
The result we got from part A above was
which means N can be equal to 5.5 or it can be smaller than 5.5
So this describes N = 2.5, N = 4.8, and N = 5.2
The values N = 5.8 and N = 6 are too big
So the answers to part B are 2.5 ft, 4.8 ft, and 5.2 ft
Answer:
836 m
Step-by-step explanation:
Given that the tracks are similar, therefore, the ratio of the lenght of all corresponding sides of the inside track to the outside track are equal, and have the same scale factor.
Only 1 side of the inside track is given as 395 m. It corresponds to the side of the outside that measures 553 m. Therefore:
scale factor = 395:553 =
Find the remaining two sides of the insider tracks by multiplying the lenght of the side of the outside tracks that corresponds to each by the scale factor.
Thus:
280*0.7 = 196 m
350*0.7 = 245 m
The remaining 2 side lengths of the inside tracks are 196 m and 245 m.
If Chang completes 1 lap around the inside tracks, he would have gone: 395 + 196 + 245 = 836 m.