3 years ago

7. Find the value of x and y:

Mathematics

1 answer:

algol133 years ago

3 0

Answer:

y = 8º

Step-by-step explanation:

Given:

(10x - 61)º

(18y + 5)º

(x + 10)º

Find:

x and y

Computation:

(10x - 61) + (x + 10) = 180

11x - 51 = 180

11x = 231

x = 21º

(10x - 61)º = (18y + 5)º [Vertical opposite angle]

10x - 61 = 18y + 5

10x - 18y = 66

5(21) - 9y = 33

y = 8º

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