3 years ago

Solve for the missing variable. Round to the nearest tenth.

Mathematics

1 answer:

zysi [14]3 years ago

4 0

Answer:

x = 10
y ≈ 8.7

Step-by-step explanation:

Corresponding sides of these triangles are proportional, so you have ...

x/5 = 20/x

x² = 5·20 . . . . . . . cross multiply

x = √100 = 10

and ...

y/15 = 5/y

y² = 15·5 . . . . . . cross multiply

y = √75 ≈ 8.7
_____

For more on the subject, see ...

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