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Alona [7]
2 years ago
9

A boat takes 2 hours to travel 15 miles upriver against the current. if the rate of the boat in still water is 12 miles per hour

, what is the rate of the current ?
Mathematics
1 answer:
OLga [1]2 years ago
7 0

Answer:

4.5 mph or 9/2 mph

Step-by-step explanation:

Let x be the rate of the current

Formula: Distance = rate x time

where rate upstream =(12-x) and time =2 hours

15=(12-x)(2)

15=24–2x

2x=24–15

2x= 9

x=9/2=4.5 miles per hour (rate of current)

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Step-by-step explanation:

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Prove that sin²α + cos²α = 1 and <img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7Bcos%5E%7B2%7D%5Calpha%20%7D" id="TexFormula1
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Answer:

See Explanation

Step-by-step explanation:

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Answer:

Step-by-step explanation:

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Harrizon [31]

The thickness of an individual sheet of the printer paper is 101.6 micrometer.

<h3>What is unit conversion?</h3>

Unit conversion is a multi-step process that involves multiplying or dividing by a mathematical factor or, more specifically, a conversion factor.

  • The procedure may also necessitate selecting the appropriate number of critical digits and rounding.
  • Different conversion units are used to evaluate different parameters.

Now, according to the question.

The total number of sheets are 500.

The thickness of stack of sheets are 2 inch.

convert 2 inch in cm;

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2 inch = 5.08 cm.

Thickness of 1 sheet = Total thickness/Total sheets

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