When 1 is subtracted from three - tenths of the number, the result is equal to one-fifth of a number. What is the number

Question

Fernando

Mathematics

4 December, 18:30

When 1 is subtracted from three - tenths of the number, the result is equal to one-fifth of a number. What is the number

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Answers (1)

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Jack · Answer 1

Based on the given mathematical statement, it can be rewritten into a mathematical equation to simplify and to be solved easily. The statement, "When one is subtracted from three-tenths of a number" corresponds to the equation, 3x/10 - 1, that is assuming the number is represented by the variable x. This is equal to one-fifth of the number. In other words,

3x/10 - 1 = x/5

x = 10