What is the solution to the proportion n/18 = 5/9

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❖ n = 10

18 ÷ 2 = 9

n ÷ 2 = 5

5 × 2 = 10

n = 10

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the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

1 and 2

step-by-step explanation: