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3 years ago

If I can walk 9673.6 meters in 5 hours. How far can I walk in 70 minutes. ( I need the work)

Mathematics

1 answer:

den301095 [7]3 years ago

6 0

First, convert 5 hours into minutes:

5 hours 60 min

------------ * --------------- = 300 min

1 1 hr

Next, find the unit rate in m/min:

9673.6 m

--------------- = 32.24 m/min

300 min

Now find the distance you can walk in 70 minutes at this rate:

32.24 m

------------- * 70 min = 2247 meters (answer)

1 min

You could walk 2247 meters (to the nearest meter) in 70 minutes.

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Limit definition for slope of the graph, equation of tangent line point for<br> f(x)=2x^2 at x=(-1)

Tems11 [23]

The slope of the tangent line to $f$ at $x=-1$ is given by the derivative of $f$ at that point:

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Factorize the numerator:

$2x^2-2=2(x^2-1)=2(x-1)(x+1)$

We have $x$ approaching -1; in particular, this means $x\neq-1$ , so that

$\dfrac{2x^2-2}{x+1}=\dfrac{2(x-1)(x+1)}{x+1}=2(x-1)$

Then

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and the tangent line's equation is

$y-f(-1)=f'(-1)(x-(-1))\implies y-4x-2$

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3 years ago

Write an equation of a line in slope-intercept form given the slope (m) and the y-intercept (b).

m_a_m_a [10]

Step-by-step explanation:

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y = -7x + 7

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8 0

3 years ago

Select the correct answer.

laila [671]

The answer is B, hope this helps

5 0

3 years ago

Debbie set a goal to run 6 miles. On Monday she ran 2.6 miles and on Tuesday she ran 1.75 miles. How far would Debbie need to ru

Makovka662 [10]

She will need to run 1.65 to reach her go

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3 years ago

the amount of military spending M (in billions of dollars) in the U.S. during year t is given approximately by the equation M=48

Fynjy0 [20]

Answer:

2008

Step-by-step explanation:

M = 48.81t + 304.30

M = 694.78 Solve for t

694.78 = 48.81t + 304.30 Subtract 304.30 from each side

390.48 = 48.81t Divide each side by 48.81

t = 390.48/48.81

t = 8.00 yr

=====

Year = 2000 + t

Year = 2000 + 8.00

Year = 2008

Military spending hit $694.78 billion at the end of 2008.

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2 years ago