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natita [175]
3 years ago
14

Whitley has run 16 miles. His slowest running time for a mile was 9 minutes and 14 seconds. His fastest running time for a mile

was 7
minutes and 58 seconds. What is a reasonable estimate for how much time Whitley has spent running these 16 miles?
Mathematics
1 answer:
wolverine [178]3 years ago
6 0

Answer:

275 minutes 12 seconds

Step-by-step explanation:

Given that :

slowest running time per mile = 9 minutes and 14 seconds

fastest running time per mile = 7

minutes and 58 seconds.

To estimate the time taken to run 16 miles ;

Obtain the Average of the two run times :

(9 minute 14 seconds) + (7 minutes 58 seconds) = 17 minutes 12 second

Hence it takes an average of 17 minutes 12 seconds per mile

Time taken to run 16 miles :

((17 * 60) + 12) * 16 = 16512 seconds

16512 / 60 = 275 minutes 12 seconds

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Megan ate 3/4 of a cookie write an equivalent fraction for the amount of cookie megan did not eat
dexar [7]
Subtract what Megan ate from the whole.
4/4-3/4 = 1/4.
Megan did not eat 1/4th of the cookie
4 0
3 years ago
The amount of time it takes Isabella to wait for the bus is continuous and uniformly distributed between 3 minutes and 15 minute
madam [21]

Answer:

33.33% probability that it takes Isabella more than 11 minutes to wait for the bus

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The probability that we find a value X lower than x is given by the following formula.

P(X \leq x) = \frac{x - a}{b-a}

For this problem, we have that:

Uniformly distributed between 3 minutes and 15 minutes:

So a = 3, b = 15

What is the probability that it takes Isabella more than 11 minutes to wait for the bus?

Either she has to wait 11 or less minutes for the bus, or she has to wait more than 11 minutes. The sum of these probabilities is 1. So

P(X \leq 11) + P(X > 11) = 1

We want P(X > 11). So

P(X > 11) = 1 - P(X \leq 11) = 1 - \frac{11 - 3}{15 - 3} = 0.3333

33.33% probability that it takes Isabella more than 11 minutes to wait for the bus

4 0
3 years ago
What is the area of this figure?​
Kipish [7]

Answer:

Area is measured in "square" units. The area of a figure is the number of squares required to cover it completely, like tiles on a floor. Area of a square = side times side. Since each side of a square is the same, it can simply be the length of one side squared.

Step-by-step explanation: hope this helps

4 0
3 years ago
HELP!!!!
aniked [119]

Answer:

A. Plane B because it was 9.33 miles away

B. 48 units

Step-by-step explanation:

A. Since the airplanes fly at an angle to the runway, their direction forms a triangle with the runway with their height above the ground as the opposite of the angle and their distance from the airport as the hypotenuse.

So for airplane A with 44° angle of departure,

sin44° = y/h where y = height above the ground and h = distance from airport

So h = y/sin44° = 6/sin44° = 8.64 miles

So for airplane B with 40° angle of departure,

sin40° = y/H where y = height above the ground and H = distance from airport

So H = y/sin40° = 6/sin40° = 9.33 miles

Since airplane B is at 9.33 miles away from the airport whereas airplane A is 8.64 miles from the airport, airplane B is farther away.

B. We know that scale factor = new size/original size

Our scale factor = 4 and original size = 12 units. So,

new size = scale factor original size = 4 × 12 = 48 units.

8 0
3 years ago
Plz help and show ur work❤️
Sergio039 [100]

Answer:

20 x

Step-by-step explanation:

i hope that is it

3 0
4 years ago
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