Find the number that makes the mathematical statement -5/7•[?] =1 true

Answer 1

To find the number that makes the mathematical statement -5/7 • [?] = 1 true, we need to solve the equation:

-5/7 • [?] = 1.

To isolate the variable, we multiply both sides of the equation by the reciprocal of -5/7, which is -7/5:

(-7/5) * (-5/7) • [?] = 1 * (-7/5).

This simplifies to:

[?] = -7/5.

Therefore, the number that makes the mathematical statement -5/7 • [?] = 1 true is -7/5.