5.(11.07 MC) It takes a total of 3 hours to wash every window on a building. There are 30 windows. How many minutes does it take to wash just one window?(​

6 minutes

Explanation:

Since the answer most certainly would be some number of MINUTES, I changed "3 hours" to minutes.  (60 min. in an hour x 3 hrs. = 180 minutes.)

Then, set up the equation:

 180   min.                           x    min.

              =    

30  windows                       1    window

30x   =   180

    x   =     6

OR you could have simply thought that 30 windows in 3 hours means the same as 10 windows in 1 hour.  (30 divided by 3).

Then, that means 10 windows in 60 minutes, which is, 6 minutes.                        (60 divided by 10.)

modal adverbs are used to modify specific verbs that consist of a linking verb (verb of being) and sometimes another verb. examples of modal verbs include can, could, may, might, must, shall, should, will and would.

modal auxiliary. an auxiliary verb characteristically used with other verbs to express mood, aspect, or tense. in english, the most common modal auxiliaries are can, could, may, might, must, ought, shall, should, will, and would. also called modal .

dfdfd

explanation: