faithwashere faithwashere

26-01-2016
Mathematics

Answered

What is the value of x in the equation 1/5x –2/3 y = 30, when y = 15?

A.4

B8
C80
D200

Verified Answer :

Billymkhoi Billymkhoi

26-01-2016

Plug y= 15 in the equation 1/5x -2/3y= 30, we have:
1/5x -2/3 15= 30
⇒ 1/5x -10= 30
⇒ 1/5x= 30+ 10
⇒ 1/5x= 40
⇒ x= 40/ (1/5)
⇒ x= 40 (5/1)
⇒ x= 200

Final answer: D. 200~

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