Answer: [tex]\text{Average speed}=49\dfrac{1}{2}[/tex] miles per hour
Step-by-step explanation:
Formula to find the average speed is given by :-
[tex]\text{Average speed}=\dfrac{\text{Distance}}{\text{Time}}[/tex]
Given : Distance = [tex]24\dfrac{3}{4}[/tex] miles=[tex]\dfrac{24\times4+3}{4}[/tex] miles
[tex]=\dfrac{99}{4}[/tex] miles
Time =[tex]\dfrac{1}{2}[/tex] hour
Then, [tex]\text{Average speed}=\dfrac{\dfrac{99}{4}}{\dfrac{1}{2}}[/tex]
i.e. [tex]\text{Average speed}=\dfrac{99\times2}{4}=\dfrac{99}{2}[/tex]
i.e. [tex]\text{Average speed}=49\dfrac{1}{2}[/tex] miles per hour
