Question

rational number 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

According to the given information.

We consider the term x to be the required answer.

Therefore x*(5/2)

Then add it to 2/3 to give - 7/12

So, x*(5/2) +(2/3) = - 7/12

5x/2 = - 7/12 - 2/3

5x/2 = - 15/12

5x = - 30/12

x = - 6/12

x = - 1/2

So the required answer is - 1/2.

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