Calculate the number 5589
[1214] Calculate the number 5589 - NUMBERMANIA: Calculate the number 5589 using numbers [9, 7, 5, 5, 92, 658] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 22 - The first user who solved this task is Sanja Šabović
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Calculate the number 5589

NUMBERMANIA: Calculate the number 5589 using numbers [9, 7, 5, 5, 92, 658] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 22
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania
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Pizza

A college pizza delivery boy arrived at the house of Mr.Smith. He delivered the pizza to his trailer. After giving it to him, Mr. Smith asked: "What is the usual tip?"
"Well," replied the youth, "this is my first trip here, but the other guys say if I get a quarter out of you, I'll be doing great."
"Is that so?" snorted Mr. Smith. "Well, just to show them how wrong they are, here's five dollars."
"Thanks," replied the youth, "I'll put this in my school fund."
"What are you studying in school?" asked Larry.
The lad smiled and said: "Applied psychology."      

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Charles Martin Hall

Born 6 Dec 1863; died 27 Dec 1914 at age 51.American chemist who invented the inexpensive electrolytic method of extracting aluminium from its ore, enabling the wide commercial use of this metal. While a young chemist, he experimented in a woodshed, intent upon finding a method for separating aluminum from its ore. At first, he was unsuccessful, but then realized that he needed a nonaqueous solvent for the aluminum oxide during electrolysis. On 23 Feb 1886, Hall found that molten cryolite (the mineral sodium aluminum fluoride) was a suitable solvent and using carbon electrodes with home-made batteries, he produced his first small globules of aluminum. By 1914, Hall's process had brought the cost of aluminium, once a precious metal used for fine jewelry, down to 18 cents a pound.«
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