3 years ago

Alma is finding the measures of the angles in a triangle that have the ratio 1:3:5. circle her mistake and correct it

Mathematics

1 answer:

PolarNik [594]3 years ago

3 0

Answer:

error in summing terms in x

Step-by-step explanation:

x + 3x + 5x = 180 ( collect like terms on left )

9x = 180 ← ( 9x not 8x )

divide both sides by 9

x = 20

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