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saveliy_v [14]
3 years ago
9

Help pls ............

Mathematics
1 answer:
Anestetic [448]3 years ago
3 0
Well it sounds like a trick question but the answer is simple! If she runs 90 meters per minute, In one minute she will run 90 meters.

Answer 90
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Batman can clean up all of the crime in Gotham City in 8 hours working alone. Robin can do the same job alone in 12 hours. If Ro
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<h2>The crime gets cleaned up at 2:00 PM</h2>

Step-by-step explanation:

Let the work be w.

Batman can clean up all of the crime in Gotham City in 8 hours working alone.

\texttt{Rate of batman,}r_b=\frac{W}{8}

Robin can do the same job alone in 12 hours.

\texttt{Rate of Robin,}r_r=\frac{W}{12}

Robin starts work at 8:00 AM and Batman Joins at 10:00 AM.

Let the time of completion of work after Batman's joining be t.

We have time of working of Robin = t + 10:00 -8:00 = t + 2

So

                             t\times \frac{W}{8}+(t+2)\times \frac{W}{12}=W\\\\12t+8t+16=96\\\\20t=80\\\\t=4hours

After 4 hours of 10:00 Am work gets completed.

Time = 10:00 AM +  4 hours =  2:00 PM

The crime gets cleaned up at 2:00 PM

4 0
3 years ago
What is 1+1x100 divided by 5
ANEK [815]

Answer:

21 is the answer

Step-by-step explanation:

1+1x100 divided by 5

8 0
3 years ago
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Explain what it means to simplify a trigonometric function?????
WARRIOR [948]

Answer:

a function of an angle, or of an abstract quantity, used in trigonometry, including the sine, cosine, tangent, cotangent, secant, and cosecant, and their hyperbolic counterparts.

Step-by-step explanation:

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3 years ago
Please solve with explanation
valkas [14]

Answer:

a

Step-by-step explanation:

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Favorite radio station has this hourly
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We are told that the news is 14 minutes long during an hour so

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3 years ago
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