Question

a rational 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

hola!

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A rational 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

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here is the solution...................

let the number be a

ATQ,

(a  × 5/2) +2/3 = -7/12

5/2a +2/3 = -7/12

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

5/2a = -15/12

a = -15*2/12*5

a = -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