PLEASE HELP ***What is the length of AC??? Please help me understand how to find this

Mathematics

1 answer:

puteri [66]3 years ago

6 0

The answer is 144.

AC and CE have the same ratio as BA and DE. So you can get the answer by getting their proportions.

 84 = 7 
156-x x

Cross multiply, transpose, and simplify to get the variable x.

84x = 1092-7x
84x + 7x = 1092
91x = 1092
x = 12

To get AC, substitute.

AC = 156 - x
AC = 156 - 12
AC = 144

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