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3 years ago

How do I mark brainliest

Mathematics

2 answers:

lapo4ka [179]3 years ago

6 0

Answer:

bascially i think when two people have answered ur question after some time an icon thats a crown will show up---u click on it and thats how ya mark an answer as brainliest

Step-by-step explanation:

mooo

andrew11 [14]3 years ago

4 0

Answer:

There is a yellow crown icon that is at the bottom of the answer that you press to mark someone brainliest. You can only do it if there are 2 answers or one answer was there for a long time though.

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Step-by-step explanation:

If the tens digit of the number is X and the ones digit is Y then the number is equal to 10*X + Y

If you reverse the digits then the number is equal to 10*Y + X

If reversing the digits decreases the number by 36 then

10*Y + X = 10*X + Y - 36

The sum of the digits is 4 so X + Y = 4 ==> X = 4 - Y

Substitute this value of X into the 1st equation

10*Y + (4 - Y) = 10*(4 - Y) + Y - 36

9*Y + 4 = 40 - 9*Y - 36

18*Y = 0

Y = 0

I hope it helps you

So X = 4 - 0 = 4 and the number is 40

so, let's check 40 - 04 = 36

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