Math, asked by shalu6753, 1 year ago

a ratinal no.number is such that when you multiply it is by 5/2and 2/3 to product ,you get -7/12.ehat is yhe number?ans is-1/2

Answers

Answered by beast14
3
Hi mate here is your answer:

let the rational number be x

x is multiplied by 5/2=5x/2

According to the problem given,

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

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

5x/2 = (-7-8)/12

5x/2 = - 15/12

x = (-15/12)×(2/5)

=> x = - 30/60

=> x = -1/2

therefore the rational number is -1/2


I hope this will help you
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