All categories

2 years ago

A marathon is 26.2 miles. If Sally ran a marathon in 3 hours and 3 minutes, what was her approximate pace?

1 answer:

4 0

A marathon is 26.2 miles which mean the distance = 26.2 miles

Sally ran a marathon in 3 hours and 3 minutes which mean the time taken to finish the marathon = 3 hours and 3 minutes
∴ distance = 26.2 miles
time = 3 hours and 3 minutes = 3 + 3/60 = 3.05 hours
∴ the approximate pace = speed = $\frac{distance}{time}$

∴ the approximate pace = 26.2/3.05 ≈ 8.59 miles per hour


∴ The answer is her approximate pace = 8.59 mile/h

You might be interested in

Evaluate. 58−(14)2=58-142= ________

nasty-shy [4]

For this case we have the following expression:

$58- (14) ^ 2$

The first step is to solve the quadratic term.

We have then:

$58- (14) ^ 2 = 58-196$

Then, the second step is to subtract both resulting numbers:

$58- (14) ^ 2 = -138$

We observe that the result obtained is a negative number.

Answer:

The result of the expression is given by:

$58- (14) ^ 2 = -138$

7 0

2 years ago

The table represents an exponential function. A 2-column table has 4 rows. The first column is labeled x with entries 1, 2, 3, 4

GenaCL600 [577]

Answer:A. on edge

Step-by-step explanation:

Just took the quiz.

5 0

2 years ago

The Pew Research Center reported in 2018 that 68% of U.S. adults rated "reducing health care costs" as a national priority. This

Zanzabum

Answer:

interpretation of p-value

With the information from the exercise we can deduce that the number of adults in North America who are going to reduce the costs of medical care, considering this as a national priority, are within a probability of 0.045, however the real data tells us that 0.68 of adults are in favor of this reduction

8 0

2 years ago

Pyramid A is a square pyramid with a base side length of 9 inches and a height of 4 inches. Pyramid B has a volume of 8,100 in.

Debora [2.8K]

Answer:

Hello! Your answer is D: 75.

Step-by-step explanation:

First we need to find the volume of pyramid A in order to solve this problem:

The formula for the pyramid is: V= $\frac{1}{3}$ (B)(h)

Now we plug in the numbers:

V= $\frac{1}{3}$ (81)(4)

V= $\frac{1}{3}$ (324)

V=108in³

Now we divide pyramid B's volume by pyramid A's:

8,100/108 = 75

So the volume pyramid B is 75 times bigger than the volume of pyramid A!

Hope this helps!

3 0

2 years ago

When Ashley left her house in the morning, her cell phone battery was partially charged. Let BB represent the charge remaining i

Ray Of Light [21]

Answer =

B= 50-10t

y-intercept of the function is 50 which represents the charge of the battery when Ashley left her house.

Step-by-step explanation:

4 0

2 years ago