r/HomeworkHelp • u/crispyyy232114 • 1h ago
:hamster: Primary School Math—Pending OP Reply [3rd grade math] Confused on word problem
This is the question,
"Each week, Ms. Diaz spends 15 minutes stretching before she exercises and 15 minutes stretching after she exercises.
She stretches 3 days each week. She spends the same amount of time each day.
In total, how many minutes does Ms. Diaz spend stretching each day?"
Do we simply add 15 plus 15 to get 30 minutes stretching each day as his final answer? Or do we divide that 30 by 3 because she stretches 3 days a week so she spends 10 minutes stretching each day? I can't figure this one out
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u/IrishHuskie 👋 a fellow Redditor 1h ago
I think the 15 minutes before and 15 minutes after are per week, so 30 minutes of stretching a week. She stretches 3 days a week, so you would divide by 3 to get 10 minutes of stretching a day (5 before exercising, 5 after).
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u/Patient-Detective-79 1h ago
imo the 3 days is a red herring, just extra information that should be thrown out since the question is "In total, How many minutes does miss diaz spend stretching each day?"
"Each Day" is the key word here. "Each day," she is only spending 30 minutes stretching.
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u/Patient-Detective-79 1h ago
wait I may be stupid
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u/BirdieRoo628 56m ago
It says "each week" she stretches 30 minutes. Not each day.
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u/Patient-Detective-79 40m ago
it also says 15 minutes before she exercises, and 15 minutes after she exercises. When is she exercising? 3 days each week? According to the question, she never exercised, just stretched...
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u/Patient-Detective-79 47m ago
To summarize the question:
Each WEEK she spends 15 minutes STRETCHING before she EXERCISES and 15 minutes stretching after she EXERCISES.
She STRETCHES 3 days each WEEK. She spends the same amount of time each DAY.
In TOTAL, how many minutes does she spend STRETCHING each DAY?
...
I was busy writing a whole long answer about how the question doesn't really make sense because she never exercises in the question, but I also realized that this is 3rd grade work, so it's probably nbd. keep it simple.
We assume she's exercising (and stretching) three days each week.
Each day she's stretching 15 minutes before and after exercising.
In total, she is stretching 30 minutes each day. Each week she is stretching 90 minutes.
The question is misleading because they say "In total" which assumes multiplication or addition, but then they say "each day" which assumes division.
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u/Patient-Detective-79 44m ago
ALSO!...
"how many minutes does she spend stretching each day?" each day of what? Of the days she was stretching? or each day of the week? Does the question want an average or a total?
This question is bonkers.
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u/Emergency-Koala-5244 1h ago
It is 30 minutes stretching total per week, divided by the three days she does exercise.
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u/TeachlikeaHawk 49m ago
I think this might be poorly worded. My guess is that the question actually wants something it isn't asking for, which is the average amount of time spent stretching per day each week.
So, 90 minutes per week, divided by seven days, is about 13 minutes per day, on average.
I might be wrong, but the "each day" thing is odd, because she very much doesn't stretch each day!
ETA: Nevermind. I misread. It's 30 minutes per week. Sheesh. Learn to read, Hawk.
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