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Katyanochek1 [597]
3 years ago
7

Estimate 40% of 20 equals

Mathematics
2 answers:
Tatiana [17]3 years ago
7 0
40% of 20 equals 8.

First, we need to think that 20 is our 100%.
Let's make the variable v as the value we're looking for.

20/v = 100/40
We need to multiply both sides of the equation by v.
(20/v) * v = (100/40) * v

Now, we're left with 20 = 2.5x

We need to divide both sides of the equation to isolate the variable x.
20/2.5 = 2.5x/2.5
8 = x

Our final answer is 8.
Delvig [45]3 years ago
6 0
40% of 20 is 8 8 is the answer
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A.) 15.7in<br> B.) 31.4in<br> C.) 40in<br> D.) 62.8in
IrinaK [193]

Answer:

31.4 in

Step-by-step explanation:

This is a tricky question,

if you observe the shape carefully, you will notice that if you mirror (flip outward) each curve surface of each quardrant, what you will end up with is a complete circle with a radius of 5 inches.

Hence the combined length of all the curved surfaces is simply the circumference of the circle, given by:

Circumference = 2πr

= 2 x 3.14 x 5

= 31.4 in

4 0
2 years ago
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Help pls 25 points don’t answer if you do not know
-Dominant- [34]

Answer:

i believe it’s graph A

Step-by-step explanation:

8 0
2 years ago
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Subtract 3 1/2 from 5 1/3
AleksAgata [21]

Answer:

11/6

Step-by-step explanation:

16/3 - 7/2 = 16/3 x 2/2 - 7/2 x 3/3 = 32/6 - 21/6 = 32-21/6 = 11/6

8 0
3 years ago
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What is the answer to this.. 8(4n+13)=6n ...i need help
ollegr [7]
8(4n + 13) = 6n
Use distributive property so :8 (4n) = 32n and 8(13) = 104
32n + 104 = 6n
Subtract 32n from each side and you will get:
104 = 26n
then you divide each side by 26 and your answer will be:
n = 4
3 0
2 years ago
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Here is a list of numbers: 2 , 8 , 1 , 7 , 4 , 10 , 1 , 15 , 20 State the median.
mel-nik [20]

Answer:

7

Step-by-step explanation:

1, 1, 2, 4, 7, 8, 10, 15, 20

median = 7

7 0
1 year ago
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