emmajosephine6 emmajosephine6
  • 20-09-2020
  • Mathematics
contestada

16. Find the values of x and y.
(2y + 5)
(5r - 17)
(3r - 11)

16 Find the values of x and y 2y 5 5r 17 3r 11 class=

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Аноним Аноним
  • 21-09-2020
(5x - 17) + (3x - 11)= 180 [ Linear Pair ]
= 8x - 28= 180
= 8x= 208
= x = 208/8
= x = 26

3x-11
= 3*26 - 11
=67

Now, we have:
(2y+5)+90+(3x-11)=180 [Linear Pair]

Substituting (3x-11),
(2y+5) + 90 + 67= 180
= (2y+5)+157= 180
= 2y + 162= 180
= 2y= 18
=y = 18/2
=y= 9

Therefore, x= 26, and y= 9

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Have a great day.
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