Answer: a)[tex]\frac{68}{80}[/tex]
b)85%
c)0.85
Step-by-step explanation:
Given : Justine answered 68 questions correctly on an 80 questions test .
Thus, Total answers = 80
Correct answers= 68
In fraction,
[tex]\frac{\text{correct answers}}{\text{total answers}}=\frac{68}{80}[/tex]
On dividing both numerator and denominator by 4, we get fraction in simplest form
[tex]\frac{17}{20}[/tex]
To convert in decimal divide 17 by 20 , we get 0.85
To convert in percent multiply 100 to the decimal, we get 85%