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wolverine [178]
3 years ago
8

Quick calculation 1+2+3+ ... +100=?

Mathematics
1 answer:
pogonyaev3 years ago
7 0
I read this  in a book called Number Games by Ivan Moscovich, "A famous German Mathematician, Karl Fredrich Gauss...When Gauss was a ten-year old student, his teacher wanted to keep his class busy for a long time so, he asked the students to add up all the number from 1 to 100....He realized that the first and last numbers (1 and 100) add up to 101.  The second number (2) and the next-to-the-last number also add ed to 101... and so on...He then had 100 pairs, which he multiplied by 101. Since Gauss only wanted the sum of one set of numbers from 1 to 100, he then divided the total in half."

the answer is  5050
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2 years ago
Katrina drinks 0.5 gallons of water per day. Which expression shows how to find the number of cups of water she drinks in a week
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3 years ago
Read 2 more answers
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IgorC [24]

Answer:

  8.  1483.33

  9.  21 months

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8. Morgan's income after taxes is 55000/12 = 4583.33 per month. The amount  available after expenses is 4583.33 -3100.00 = 1483.33 per month.

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9. If Morgan is able to save $1483.33 per month, it will take her ...

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It will take Morgan about 21 months to save $30,000.

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If you like, you can write an equation for "m", the number of months it will take Morgan to save 30,000:

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