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tatyana61 [14]
3 years ago
11

a particular submarine is 12 m long. A model of it was built with a scale of 1 cm: 3 m. How long is the model? Show all work.

Mathematics
1 answer:
slamgirl [31]3 years ago
5 0
1cm : 3m

to get from 12m to 3m you have to divide by 4, so if:

3 x 4 = 12

then you do the same to the 1cm and you get:

1 x 4 = 4

Therefore:

1cm : 3m
4cm : 12cm

the model is 4cm

the answer is the above in bold
hope it helped :)
and sry if my explanation wasn't detailed enough or if i misunderstood the question
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Complete Question

The complete question is shown on the first uploaded image

Answer:

a

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b

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c

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Step-by-step explanation:

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The total number of deaths in 1996 - 2000 is mathematically represented as

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The total number of deaths in 2006 - 2010 is mathematically represented as

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Here  P(A \ n\  U ) represents the probability that it was after 2000 and it was under the tree and this is mathematically represented as

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=>      

Also

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=>      P(A) =  \frac{ 206+  182}{623}

=>  

So

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So

          P(O | B) =  \frac{ \frac{117}{623}}{ \frac{235}{623}}

=>       P(O | B) =   0.498

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