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Sladkaya [172]
3 years ago
11

How do you do 6.39÷0.09

Mathematics
2 answers:
stepladder [879]3 years ago
8 0
You move the decimal place to the right twice on both, so .09 becomes a whole number and 6.39 639. Then divide normally.
erica [24]3 years ago
4 0
The Answer Is 71. I dont know how you do it on paper though
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One number is 1 more than 2 times another. Their product is 10. Find the numbers.
Taya2010 [7]
Whenever a problem says "one number" and "another number" we can substitute x and y. for this we have x=2y+1 and xy=1. since we know the value of x (2y+1) we can substitute it for the other equation to get (2y+1)y=10. simplify to get 2y^2+y=10. from here you can do a few methods to solve this, but the simplest in my opinion is by factoring. 

In order to factor it must be equal to 0, so we have 2y^2+y-10=0. We factor this and get y=5 (we also get y=-4 but it is an extraneous root). now we can plug that into either equation and find that x=2.

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3 years ago
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Andrej [43]

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8 0
3 years ago
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slavikrds [6]

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WINSTONCH [101]
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This was the best I could think of, please let me know if I'm wrong.
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