Afactory produces 272 chairs in an 8-hour shift. if the factory produces the same number of chairs each hour, how many chairs does it produce in 30 minutes?

For this case we propose a rule of three taking into account that:

1 hour equals 60 minutes, then hour equals 30 minutes.

272 chairs --------------> 8 hours

x ---------------------------->

Where "x" represents the amount of chairs produced in 30 minutes.

Thus, in half an hour 17 chairs are produced.

In half an hour 17 chairs are produced.

hello! just here for points! though i wish i knew!

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb