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Alex73 [517]
3 years ago
12

If Jamie is riding at 14 mph and cori is riding at 0.04km per minute, how far will each of yjem bike in two hours? 1 mile = 1.61

km use the equation D=V/T
Mathematics
2 answers:
Gelneren [198K]3 years ago
8 0

Answer:

Jamie will have covered a distance of 45.08 km while Cori will be 4.8 km away

Step-by-step explanation:

Here, we want to know how far will each of both riders be in 2 hours time.

Jamie is riding 14 mph

This means the number of miles covered in two hours will be 14 mph * 2 = 28 miles

For comparison purposes, let’s convert this to kilometer.

Since 1 mile = 1.61 km, then 28 miles will be 28 * 1.61 km = 45.08 km

For Cori, he is riding at 0.04 km per minute

1 hour = 60 minutes

so 2 hours = 2 * 60 = 120 minutes

Since the speed is 0.04 km in a minute

Then the distance in 120 minutes will be 0.04 * 120 = 4.8 km

Gelneren [198K]3 years ago
4 0

Answer:

The answer is B.

Step-by-step explanation:

0.40 km to miles 0.248548

Then 0.248548 x 120=2 hours

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Answer:

The area function is

A=\frac{135}{2}x-\frac{9}{2}x^2.

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The given length of fencing is 90 m.

Let the length and width of each pen be x and y respectively as shown in the figure.

As there are 3 pens, so, the total area,

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x=15-\frac{2y}{3}

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Equate \frac {dA}{dx}  to zero to get the extremum point.

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Check this point by double differentiation

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As,  \frac {d^2A}{dx^2}, so, point x=\frac{15}{2} is corresponding to maxima.

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