zanaplen27 zanaplen27

03-10-2018
Mathematics

contestada

All the members of a construction crew work at the same pace. Four members of the crew, working together, are able to pour foundations in 32 hours.
a
How many hours would this job take if there were half as many workers?

Respuesta :

damiab08 damiab08

03-10-2018

This would take 16 hours.

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meghanbf meghanbf

03-10-2018

Half of 4 is 2 so set up a proportion using 4, 32, and 2.

[tex]\frac{4}{32} =\frac{2}{y}[/tex]

Then, cross multiply and solve for y.

[tex]4y=64[/tex]

[tex]64/4=16[/tex]

[tex]y=16 hours[/tex]

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