Question

If (5y-1)° and (5y-19)° form a linear pairs then y is : *

Answer 1

Answer:

Sum of linear pair = 180

(5y - 1)° + (5y - 19)° = 180

10y - 20 = 180

10y = 180 + 20

10y = 200

y = $\frac{200}{10}$

y = 20

(5y - 1)

= [5(20) - 1]

= 100 - 1

= 99

(5y - 19)

= [5(20) - 19]

= 100 - 19

= 81

Verify:-

99 + 81 = 180

180 = 180

Hope it helps

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