2 years ago

There were 13 students running in a race. How many different arrangements of first,

Mathematics

1 answer:

stellarik [79]2 years ago

5 0

Answer: 13P3= 1716

Step-by-step explanation:

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A motorboat maintained a constant speed of 28 miles per hour relative to the water in going 45 miles upstream and then returning

Sveta_85 [38]

The speed of the current is 7 miles per
hour.
Step-by-step explanation:
Let × represent speed of the current.
We have been given that a motorboat
maintained a constant speed of 11 miles per
hour relative to the water in going 18 miles
upstream and then returning.
The speed of motorboat while going
upstream would be 11
The speed of motorboat while going
downstream would be 11 + 2
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3 0

1 year ago

Hi can anyone solve this for me please solve it on a piece of paper please

mojhsa [17]

Answer:

Awsten Knight

Step-by-step explanation: