Answer :
Since the time difference depends on the initial amount of time, answer #1 is not right
Next, #3 is also not right since the difference is way to great.
Next, #4, we cannot tell how long the workouts of both were, so this is not right either
Therefore, #2 is the right answer
Hope this helped!! :D
Next, #3 is also not right since the difference is way to great.
Next, #4, we cannot tell how long the workouts of both were, so this is not right either
Therefore, #2 is the right answer
Hope this helped!! :D
Answer:
If Alina’s workout was 80 minutes, and Dane’s workout was 48 minutes, they spent the same amount of time on cardio exercise.
Step-by-step explanation:
For option A,
If they both workout for [tex]x[/tex] minutes,
Alina's time is
[tex]=0.15x[/tex]
and Dane's time is
[tex]=0.25x[/tex]
The difference is
[tex]0.25x-0.15x=0.1x[/tex]
If they both work out for 100 minutes, then Dane did 10 more minutes of cardio exercise than Alina.
Since [tex]x[/tex] is not fixed, this statement is false.
For option B,
If Alina's work out was 80 minutes, then she spent [tex]0.15\times80=12[/tex] minutes on cardio exercise.
If Dane's work out was 48 minutes, then he spent [tex]0.25\times48=12[/tex] minutes on cardio exercise.
Hence both spent the same amount of time on cardio exercise.
The correct answer is option B
For option C,
If they both workout for [tex]60[/tex] minutes, then
Alina's time is
[tex]=0.15\times 60=9[/tex]
and Dane's time is
[tex]=0.25\times60=15[/tex]
The difference is
[tex]15-9=6[/tex]
If they both work out for 60 minutes, then Dane did 9 more minutes of cardio exercise than Alina and not 10.
This statement is false
For option D,
We cannot tell whether Alina spent more or less time than Dane,unless we know the time both spent for the entire work out.