#20 Use the diagram and the given information to find the unknown length

Algebra
Tutor: None Selected Time limit: 1 Day

Nov 20th, 2014

CB/DE = BA/EF

Set up the proportion: 

10/8 =  x/12

5/4 = x/12

Cross multiply:

12*5 = 4*x

60 = 4x

x = 15

BA = 15


Nov 20th, 2014

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