meghan2
meghan2 meghan2
  • 21-10-2016
  • Mathematics
contestada

How to solve for the letter y

How to solve for the letter y class=

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apologiabiology
apologiabiology apologiabiology
  • 21-10-2016
ratio and proprtion

if the leftmost side is z
we know that 2 triangles that are congruent have sides in same ratio

so

x:8:9=z:9:y

8:9=9:y
8/9=9/y
times 9y both sides
8y=81
y=10 and 1/8
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