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vladimir1956 [14]

3 years ago

10

The earth has a diameter of 7926.41 miles. What is the circumference of the earth. (this would be the distance you have to walk,

if you could walk around the equator.

1 answer:

Xelga [282]3 years ago

7 0

Hello from MrBillDoesMath!

Answer:

24901.6 miles (approximately)

Discussion:

Circumference of a circle = C

= 2 Pi r

= (2r) Pi => as diameter = 2 * radius, so d = 25

=(7926.41)*Pi => as Pi is approximately 3.141

=(7926.41)(3.141)

= 24901.6 (approximately)

That's a long way to walk!

Thank you,

MrB

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2 years ago

What ratio forms a proportion with 14/42?<br> A. 1/4<br> B. 7/21<br> C. 12/40<br> D. 28/80

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Hey there!

"What ratio forms a proportion with $\frac{14}{42}$ ?"

- $\frac{14}{45} =0.56$ (for the decimal)

$A) \frac{1}{4}$ $=0.25$ $(incorrect)$
$B) \frac{7}{21}$ $=0.33$ $(Incorrect)$
$C) \frac{12}{40}$ $0.3$ $(incorrect)$
$D) \frac{28}{80}$ $0.7$ $(incorrect)$

But in order for you to solve this particular equation you'd have to go in with two (like multiplying by two)

$1\times2= 2$ ; $4\times2 = 8$ $(incorrect)$
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$12 \times2 = 24$ ; $40\times 2 = 80$ $(incorrect)$
$2 \times 28 = 56$ ; $2\times 80 = 160$ $(incorrect)$

Your result: $\boxed{Answer: B. \frac{7}{21} }$

Good luck on your assignment and enjoy your day!

~ $\bold{LoveYourselfFirst:) }$

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