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MA_775_DIABLO [31]
3 years ago
10

Sherlock Holmes was sitting comfortably on an armchair on a snowy day. Dr. Watson was sitting beside him reading a book near the

fireplace. Suddenly Holmes said to Watson,” I am having a little brainteaser for you”. Then Holmes scribbles something in a piece of paper and give it to Watson. The note is: 217: 335 896: 543 345: ?
Mathematics
1 answer:
ladessa [460]3 years ago
8 0
The riddle given by Dr. Watson to Sherlock Holmes is:

217 is to 335
896 is to 543
345 is to ____

We need to find the missing number of the third pair of the riddle. This is a ratio and proportion problem.

217/ 335 = 896/ 543 = 345 / x

The value of x is 209. 
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3 years ago
What is the scientific notation of 0.00165?
Ierofanga [76]

Answer:

The answer is 1.65*10^{-3}

Step-by-step explanation:

when writing scientific notation, there must be one number to the left of the decimal point.

To achieve this in this problem, you need to move the decimal point 3 times to the right.

because you are moving the point to the right, the exponent will be negative.

*rule of thumb: moving the decimal to the left will give you a positive exponent, moving to the right will give you a negative exponent*

therefore you answer should be written as:

1.65*10^{-3}

hope this helps :)

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