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precision math work question

Algebra
Tutor: None Selected Time limit: 0 Hours

A construction foreman has 180 m of fencing. She needs to fence four sides of the construction site that are 38.2 m, 42.6 m, 44.8 m, and 36.9 m in length. 

 

How much fencing will she have left over?

A.
12.5 m
 
 B.
13.9 m
 
 C.
17.4 m
 
 D.
17.5 m
Apr 14th, 2015

Total of four sides = 44.8 + 42.6 + 38.2 + 36.9

                              = 162.5 m

Foreman has total fencing = 180 m

left over fencing = 180 - 162.5

                           = 17.5 m        D is correct.

Apr 14th, 2015

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