It is 1.25.
I can prove.
1.25+5.00 = 6.25
and even
1.25x2 = 2.50
2.50x2 = 5.00
5.00+1.25 = 6.25
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Let the unknown number be x. The equation representing the situation is x + 5 = 5x. Solving for x, we get x = 1. Therefore, the number that, when added to 5, is the same as when multiplied by 5 is 1.
(√5 +1)/2 and (√5 +3)/2. Both give the same result (√5 +2)
The equation to describe this is: 6x = x + 6. Rearrange to get 5x = 6 --> x = 6/5 = 1.2
75 is the same as 3 multiplied by 5 multiplied by 5.
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