Question

A rational no. Is such that when you multiply it by 5/2 and add 2/3 to the product you get -7/12. What is the number?

Answer 1

Answer: The number is -1/2

Step-by-step explanation:

Please find the attached image.

Answer 2

Answer:

Let x be the rational number.

5/2 × ( 3 / 3 = 7 / 12 )

5/2 * = 7 / 12 -1/3

5/2 = -7 - ( 2 - 4 ) / 12

5/2 × - 15 / 2

Multiplying both sides by ( 2/15 )

x = - 15 / 12 × 2 / 5 = - 1/2

.•. Rational number = - 1/2