Find number abc
[6262] Find number abc - If 84acc + abb2a = c78240 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 22 - The first user who solved this task is Nílton Corrêa de Sousa
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Find number abc

If 84acc + abb2a = c78240 find number abc. Multiple solutions may exist.
Correct answers: 22
The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math
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Sounds more like a nightmare...

An older couple wakes up in the morning and the husband looks over at his wife and says, " Wow! You wouldn't believe the dream I had..."

The wife replies, "Yes, go on tell me."

So the husband says "I had a dream that you left me after 20 years of being married."

The wife says, "Oh, it sounds more like a nightmare."

The husband says, "No, I am sure it was a dream."

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First use of chemical symbols in British textbook.

In 1832, Edward Turner wrote a Preface to the 4th edition of his textbook, Elements of Chemistry (published 1833), in which he explained his use of symbols to represent reactants and products in a chemical reaction of Cyanogen, because he found they solved the difficulty of giving a “clear and concise description of. the phenomena in ordinary language.” His was the first use of chemical symbols in a British chemistry textbook. Turner used some algebra-type notation as suggested by William Whewell with parts of Jöns Jacob Berzelius's system, in which iron was represented by Fe (from Ferrum) and oxygen by O. Thus Fe + O represented one oxide of iron, and 2Fe + 3O represented another. Dots over the symbol indicated degree of oxidation, and an underline stood for two equivalents of a substance.«
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