i am a number between 22 and 30 the sum of my digit 9 and different is 5 who am i?

4 answers

27

Because 2+7 = 9 and 7-2 = 5
a = First number

b = Second number

The sum of digit = 9

a + b = 9 Subtract b to both sides

a + b - b = 9 - b

a = 9 - b

The different of digit = 5

b - a = 5

b - ( 9 - b ) = 5

b - 9 + b = 5

2 b - 9 = 5 Add 9 to both sides

2 b - 9 + 9 = 5 + 9

2 b = 14 Divide both sides by 2

2 b / 2 = 14 / 2

b = 7

a = 9 - b = 9 - 7 = 2

27
i am number between 35 and 45 i am completeli divisible by 13 find the number
39 = 3 * 13
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