alligator20 alligator20

28-02-2019
Mathematics

contestada

Round to the nearest tenth.

Round to the nearest tenth class=

Respuesta :

MrsStrong MrsStrong

08-03-2019

Answer:

16.8

Step-by-step explanation:

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

[tex]\frac{20}{30}=\frac{28-x}{x}[/tex]

Cross multiply the numerator and denominator of each fraction.

20x=30(28-x)

20x = 840 - 30x

50x = 840

x = 16.8

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