168k views
3 votes
Your teachers work at least 50 hours a week. 40% ofthat time is spent teaching students. How many hoursare teachers teaching?

User Zilong Li
by
6.0k points

1 Answer

1 vote

The teacher works 50hours/week → this is the 100% of their work time.

40% of those 50hours/week they spend teaching their students, to calculate how many hours that is you can use cross multiplication_

100%_______50hours/week

40%_______x hours/week


\begin{gathered} (50)/(100)=(x)/(40) \\ x=((50)/(100))\cdot40 \\ x=20 \end{gathered}

The teachers spend 20hours/week teaching their students.

User Harukaeru
by
5.5k points