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Nutka1998 [239]
3 years ago
6

Jenna is buying 5 new shirts at $15 each. Which of the following is NOT a way to write a calculation for how much money

Mathematics
1 answer:
docker41 [41]3 years ago
6 0

Answer:

B, because thats dividing, which equals 3. for the answer A, did you mean 15*5?

Step-by-step explanation:

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4 0
3 years ago
analog clock is gaining 3 minutes every hour, You set it at 6 pm on Saturday, when will it show the correct time
Ivanshal [37]

This is tricky.  Fasten your seat belt.  It's going to be a boompy ride.

If it's a 12-hour clock (doesn't show AM or PM), then it has to gain
12 hours in order to appear correct again.

How many times must it gain 3 minutes in order to add up to 12 hours ?

(12 hours) x (60 minutes/hour) / (3 minutes) = 240 times

It has to gain 3 minutes 240 times, in order for the hands to be in the correct positions again. Each of those times takes 1 hour.  So the job will be complete in 240 hours  =  <em>10 days .</em>

Check:

In <u>10</u> days, there are <u>240</u> hours.
The clock gains <u>3</u> minutes every hour ==> <u>720</u> minutes in 240 hours.
In 720 minutes, there are  720/60 = <u>12 hours</u>       yay !
_________________________________

If you are on a military base and your clocks have 24-hour faces,
then at the same rate of gaining, one of them would take 20 days
to appear to be correct again.
_________________________________

Note:
It doesn't have to be an analog clock.  Cheap digital clocks can
gain or lose time too (if they run on a battery and don't reference
their rate to the 60 Hz power that they're plugged into).


3 0
3 years ago
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