Question

kai calculates that he spends 15% of a school day in science class. if he spends 75 minutes in science class, how many minutes does kai spend in school

Answer 1

500 because you need to figure out what 10% is. To do that double 75 to get 30%. Move the decimal over and get 3. 150=30% Therefore, 50 is 10%. 50x10=500.

Answer 2

To be exact Kai spends 500 minutes or 8.3 hours at school

To solve you divide 100 by 15 100/15=6.6
Then you multiply 6.6 and 75(Mins in Sci) 6.6*75=500
Lastly you divide 500 by 60(Mins in Hour) 500/60=8.3