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19. Jim paddles from one shore of a lake three miles wide at 4 mph, and John paddles from the opposite shore at 5 mph. How long will they travel before they meet?
A. 20 minutes B. 27 minutes C. 1 hour, 24 minutes D. 3 hours
Jim is 1 mile away from John,so that means that it should take Jim at least an hour or two to get to John.I don't know if I expand this the right way.
Then this answer will have to be C or D for sure,if not please correct me.
Thank you any help is appreciated.
I meant to say explained this the right way.
. From net earnings of $740 per month, Ginger Elliott must spend $200 for her portion of the rent on an apartment she shares with two friends. What percent of her net income is her rent payment?
A. 73 percent B. 32 percent C. 38 percent D. 27 percent
I have thought about it for a while and came up with D.Am I right?
Yes, Ginger pays 27 percent of her earnings on rent.
Thanks Ms.Sue!
You're welcome, Sarah.
15 minutes
To solve this problem, we need to find the time it takes for Jim and John to meet in the middle of the lake.
Let's start by calculating the distances each person has to travel. Since the lake is three miles wide and Jim starts from one shore, he has to paddle a distance of 3 miles to reach the middle. Similarly, John starts from the opposite shore and also has to paddle a distance of 3 miles to meet Jim.
Now, we can use the formula: Time = Distance / Speed to calculate the time it takes for each person to paddle their respective distances.
For Jim:
Time = Distance / Speed
Time = 3 miles / 4 mph
Time = 0.75 hours or 45 minutes
For John:
Time = Distance / Speed
Time = 3 miles / 5 mph
Time = 0.6 hours or 36 minutes
Since they are paddling towards each other, the total time it takes for them to meet would be the sum of their individual times.
Total time = Jim's time + John's time
Total time = 45 minutes + 36 minutes
Total time = 81 minutes
However, the answer choices are given in hours and minutes format. To convert 81 minutes to hours and minutes, we divide the total time by 60 (since there are 60 minutes in an hour).
Total time = 81 minutes / 60
Total time = 1 hour and 24 minutes
Therefore, the correct answer is option C: 1 hour, 24 minutes.
Note: Jim being 1 mile away from John doesn't affect the calculation of their meeting time. It's the total distance they travel that determines the time it takes for them to meet.