Raul spent one hour doing his homework last night. he spent 1/4 hour on math and 1/3 hour on history. He spent the rest of the time on language arts. What part of an hour did he spend on language arts? How many minutes was this?

Respuesta :

Answer:

The time Raul spent on Language Arts is (5/12) hours.

Raul spent 25 minutes on Language Arts.

Step-by-step explanation:

The total time allotted for home = 1 hr

Time spent on math = (1/4) hour

Time spent on history = (1/3) hour

Let the time spent on language arts = k hours

Now, according to the question:

Time Spent on (Math + History + Language Arts) = 1 hour

⇒  [tex](\frac{1}{4}) + (\frac{1}{3})  + k = 1[/tex]

or, [tex]\frac{3 + 4}{12}  + k = 1  \implies  \frac{7}{12}  + k  = 1[/tex]

or, [tex]k = 1 - \frac{7}{12}  = \frac{12 - 7}{12}   = \frac{5}{12}[/tex]

k = (5/12) hours

Or, the time Raul spent on Language Arts is (5/12) hours.

and (5/12) hour = [tex]\frac{5}{12}  \times 60 = 25[/tex]

Or, Raul spent 25 minutes on Language Arts.