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pav-90 [236]
3 years ago
13

You are standing next to a really big circular lake. You want to measure the diameter of the lake, but you don't want to have to

swim across with a measuring tape! You decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400pi m.
What is the diameter d of the lake?
Mathematics
2 answers:
Nuetrik [128]3 years ago
5 0
The diameter would be 400 because one of the two formulas to find a circumference is C= pi (D) so according to ur information, the diameter would be 400
alexdok [17]3 years ago
4 0

Answer:

C = πd

400π = πd

400 m = d

Step-by-step explanation:

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Answer:

<u>So, the way a ratio works is </u><u>"for every 1 of this, we have 4 of this"</u><u> for example. (the ratio I just described would be 1:4.) </u>

<u />

I believe I've seen this question before. If the ratio of dolls to teddy bears is 9:3 then for every 9 dolls you have 3 teddy bears.

So, since we have 240 dolls and a 9:3 ratio to teddy bears, all we have to do is take how many dolls we have (240) and divide it by 3 to see how many teddy bears we have.

So:

240 ÷ 3  = 80

If your ratio is 9:3, then 80 is your answer.

<u>Hope this helps and have a nice day!</u>

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7 0
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