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Round to the nearest tenth.

Round to the nearest tenth.-example-1

1 Answer

3 votes

Answer:

16.8

Explanation:

Assuming the triangles are similar, write a proportion to find x.


(20)/(30)=(28-x)/(x)

Cross multiply the numerator and denominator of each fraction.

20x=30(28-x)

20x = 840 - 30x

50x = 840

x = 16.8

User ELinda
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