1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dmitry [639]
2 years ago
15

HELP PLEASE!!!!!! Find the speed of an athlete who makes 4and3/4 laps in 3mins45 seconds on a 400m field in m/s​

Mathematics
1 answer:
Rom4ik [11]2 years ago
7 0

Given:

An athlete who makes 4\dfrac{3}{4} laps in 3 mins 45 seconds on a 400m field.

To find:

The speed of the athlete in m/s.

Solution:

We know that,

Distance covered in 1 lap = 400 m

Distance covered in 4\dfrac{3}{4} laps = 4\dfrac{3}{4}\times 400 m

                                               = \dfrac{19}{4}\times 400 m

                                               = 1900 m

We know that,

1 minute = 60 seconds

3 minutes = 180 seconds

3 minutes 45 second = 180 + 45 seconds

                                   = 225 second

The speed of the athlete is:

Speed=\dfrac{Distance}{Time}

Speed=\dfrac{1900}{225}

Speed\approx 8.44

Therefore, the speed of the athlete is about 8.44 m/s.

You might be interested in
Can anybody help with this ?
9966 [12]
Answer: D. -40x^3+25x^2+45x
6 0
3 years ago
Read 2 more answers
The Smiths leave Indiana at 6:00 am to travel to Georgia. They stop for 4 breaks totaling 3 hours and stop to visit some friends
satela [25.4K]
It's 975 because they traveled for 17 hours and had stopped for 2 hours do 17-2=15, so 15×65=975
6 0
2 years ago
Read 2 more answers
The population of a species of rabbit triples every year. This
jok3333 [9.3K]

Answer:

"4" represents that there are 4 rabbit in the beginning.

Step-by-step explanation:

Given that the population of a species of rabbit triples every year. This

can be modeled by function f\left(x\right)=4\left(3\right)^x and f(5) = 972.

Now we need to find about what does the 4 represent in the given function.

We know that exponential function is given by f\left(x\right)=a\left(b\right)^x. Where "a" represents the initial amount.

we have a=4 in given function f\left(x\right)=4\left(3\right)^x.

So that means "4" represents that there are 4 rabbit in the beginning.

3 0
2 years ago
How do you graph x = 40?
Pani-rosa [81]

Answer:

Step-by-step explanation:

Draw an infinite vertical line on the +40 x axis.

5 0
2 years ago
Read 2 more answers
Tayla purchased a large box of comic books for $300. She gave 15 of the comic books to her brother and then sold the rest on an
weeeeeb [17]

Answer:

Number of comic books is 75.

Original price of each comic book is 4$.

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • use the lowest common denominator to add the following fractions. give the final answer in simplest terms. 3/4 + 1/8
    6·1 answer
  • The Human heart pumps 750 gallons of blood in 9 hours A human kidney filters 100 gallons of blood in 6 hours how many more gallo
    12·2 answers
  • The orthocenter of an obtuse triangle always lies __________.
    7·1 answer
  • Lee washes the outsides of houses. It takes him 40 minutes to power wash a one-story home, and he uses 180 gallons of water. Pow
    12·1 answer
  • Elaine is making a flower garden with rows of flowers. The garden is 20 yards long. She wants a total of 7 rows of flowers that
    15·2 answers
  • Difference between 4/5 and 6/8
    13·1 answer
  • Is 703.005 greater than 703.05
    10·1 answer
  • Marlon withdrew $25 from his savings account every week for 5 week.Which expression is the best choice to help him determine the
    10·2 answers
  • Sleep apnea: Sleep apnea is a disorder in which there are pauses in breathing during sleep. People with this condition must w up
    12·2 answers
  • If f ( x ) = 3x 2 - 6x + 2 and g ( x ) = 2x 2 + 2x - 11,<br> then find f ( x ) + g ( x ).
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!