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german
3 years ago
6

Two-fifths of one less than a number is less than three-fifths of one more than that number. What numbers are in the solution se

t of this problem?
x<-5
x>-5
x<-1
x>-1
Mathematics
2 answers:
yaroslaw [1]3 years ago
7 0
2/5 * (n - 1) < 3/5 * (n + 1)
2/5 * n - 2/5 < 3/5 * n + 3/5
- 2/5 - 3/5 < 3/5 * n - 2/5 * n
- 5/5 < 1/5 * n
- 1 < 1/5 * n      /*5
- 5 < n
n > - 5

n = x

The correct result would be B) <span>x > - 5.</span>
Elena L [17]3 years ago
3 0

Answer:  The correct option is (B) x > -5.

Step-by-step explanation:  Given that two-fifths of one less than a number is less than three-fifths of one more than that number.

We are to find the numbers that are in the solution set of this problem.

Let, 'x' represents a number in the solution set.

Then, according to the given information, we have

\dfrac{2}{5}\times (x-1)

Thus, the solution set is represented by the number 'x' such that

x > -5.

Option (B) is correct.

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