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2 years ago

Help me plssssssssssssssssssssssssssssssssssss

Mathematics

2 answers:

Westkost [7]2 years ago

5 0

Answer:

You would have to divide 50/2.5.

Step-by-step explanation:

50/2.5 = 20.

So, it would take 20 steps

sasho [114]2 years ago

4 0

Answer:

Step-by-step explanation:

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umka2103 [35]

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7x=3x+16
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If 1 card is drawn at random from a standard 52-card deck, what is the probability that the card drawn is a black nine?

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3 years ago

A student is saving money to buy a microscope. The student currently has $50 and plans to save $15 every month. Write a function

Evgen [1.6K]

Answer:

Step-by-step explanation:

The student currently has $50 and plans to save $15 every month.

Let x represent the number of months that the student will save enough money to buy the microscope.

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The function that represents the amount y (in dollars) of money that the student saves after x months will be

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3 years ago

Pls help how do u do this???

viktelen [127]

Answer:

well well well

Step-by-step explanation:

free points

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2 years ago

Two boats sail away from a buoy making a 90 degree angle. The first boat is 165 meters away and is traveling at 25 m/s. The seco

NikAS [45]

Answer:

Step-by-step explanation:

lets say in the shown triangle x=165

so speed $\frac{dx}{dt} =25$

and $\frac{dy}{dt} =35$

Also since distance = speed* time

time = pi minutes = pi/60 seconds

y = $\frac{35\pi \pi }{60}$

y = $\frac{7\pi }{12}$

Now using the pythagorean :

$x^2+y^2=z^2\\so \\165^2+(\frac{7\pi }{12} )^2 =z^2$

derivate the equation so we get :

$x\frac{dx}{dt} +y\frac{dy}{dt} =z\frac{dz}{dt} \\$ $165*25+35*\frac{7\pi }{12}=\sqrt{165^2+(\frac{7\pi }{12})^2} *\frac{dz}{dt}$

$\frac{dz}{dt} =25.387$ m/s

So Rate of change = 25.387 m/s

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3 years ago