Hello there! I can help you! A way we could do this is to first find the unit rate. In other words, how long it takes for each person to run 1 lap. In this case, you would do minutes/laps. To find Destiny’s unit time, you have to 12/8 and for Thelma’s unit time 14/7. If you do the question right, you should get this:
• Destiny’s time (1 lap) = 1 1/2 minutes (1 minute 30 seconds)
• Thelma’s time (1 lap) = 2 minutes
Now, we have to find the combination to find the amount t time it takes to run the number of laps that was given. In this case, we have to multiply Destiny’s time per lap by 5 and Thelma’s time per lap by 3. If you do this correctly, your answer should be:
• Destiny’s total time (5 laps) = 7 1/2 minutes (7 minutes 30 seconds)
• Thelma’s total time (3 laps) = 6 minutes