Mathematics, 16.10.2019 20:00 st3ph
When sally picks any number between 1 and 20, doubles it, adds 6, divides by 2 and subtracts 3, she always gets the number she started with. why?
Answers: 1
Mathematics, 21.06.2019 22:00
1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25
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Mathematics, 22.06.2019 02:50
What is the value of x in the equation 3x4y65, when y=4?
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When sally picks any number between 1 and 20, doubles it, adds 6, divides by 2 and subtracts 3, she...
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