Answer:
Time spent on history homework is 7/12 of an hour.
Step-by-step explanation:
Given:
Time spent by Cole for his homework = 1 hour
Time spent on Spanish homework = 5/12 hour
Let
Time spent on history homework be 'x' hours
So the summation of homework hour = 1
Accordingly:
⇒ [tex]x+\frac{5}{12} = 1[/tex]
⇒ [tex]\frac{12x+5}{12}=1[/tex]
⇒ [tex]12x+5=12[/tex]
⇒ [tex]12x+5-5=12-5[/tex]
⇒ [tex]12x=7[/tex]
⇒ [tex]x=\frac{7}{12}[/tex]
Time spent on history homework by Cole is 7/12 of an hour.
Option C is the right choice.