Carla spends 6/4 hours exercising everyday for 12 days.She spends 1/2 of her exercise time everyday lifting weights.How much time does Carla spend lifting weights during the 12 days?
I think the answer is this:
6/4hrs.=360min. The answer is 90 hours or
540 minutes 360\4=90
90\2=45
45x12=540min.
Why not just take
(6/4)*(12)*(1/2) hours
or
= 9 hours
Your answer of 540 minutes is correct, but why switch to minutes when they weren't even mentioned?
Secondly, what textbook would leave the fraction as 6/4 in "Carla spends 6/4 hours ...." ?
thanks a lot! that was my homework and i don't know why it has that i was confused too.
Let's break it down step-by-step to calculate how much time Carla spends lifting weights during the 12 days:
1. Convert 6/4 hours into minutes:
- 6/4 hours is equivalent to (6/4) x 60 = 90 minutes.
2. Calculate how much time Carla spends lifting weights each day:
- Carla spends 1/2 of her exercise time lifting weights.
- 1/2 x 90 minutes = 45 minutes.
3. Calculate how much time Carla spends lifting weights during the 12 days:
- Carla spends 45 minutes lifting weights per day.
- 45 minutes x 12 days = 540 minutes.
Therefore, Carla spends 540 minutes (or 9 hours) lifting weights during the 12 days.
To calculate the total time Carla spends lifting weights during the 12 days, follow these steps:
1. Convert the exercise time from hours to minutes: Since there are 60 minutes in an hour, multiply the exercise time by 60.
- 6/4 hours = (6/4) * 60 = 360 minutes.
2. Determine the amount of time Carla spends lifting weights daily: According to the problem, Carla spends 1/2 of her exercise time lifting weights.
- 1/2 * 360 minutes = 180 minutes.
3. Calculate the total time Carla spends lifting weights during the 12 days: Multiply the daily time by the number of days.
- 180 minutes * 12 days = 2160 minutes.
Therefore, Carla spends 2160 minutes lifting weights during the 12 days.