Question

A 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

⇔⇔⇔⇔⇔YOUR QUESTION :-
A 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???????

⇔⇔⇔⇔⇔ YOUR ANSWER ↓↓↓↓↓↓

Let the rational number be x .
According to question , 
  $\frac{5}2{x}$ + $\frac{2}{3}$ = $\frac{-7}{12}$

 $\frac{5}2{x}$  = $\frac{-7}{12}$ - $\frac{2}{3}$

 $\frac{5}2{x}$ = $\frac{-15}{12}$
Using Cross Multiplication ,

60x = -30
x = $\frac{-30}{60}$
x = $\frac{-1}{2}$

Hence , $\frac{-1}{2}$ is Desirable Value.

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ANKIT

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