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
STALIN [3.7K]
3 years ago
10

A runner wants to be able to run 400m in 50 seconds. what miles per hour speed must have Runner attain to accomplish this goal.

the runner knows that there are 1609 meters in a mile
Mathematics
1 answer:
liubo4ka [24]3 years ago
5 0
Expected speed: 400 m in 50 seconds 
Therefore, speed in m/sec = 8 m/sec 
Given: 1 mile =1609 meters 
1 meter = 1/1609 miles 
 1 hour = 60 sec x 60 sec =3600 seconds 
 1 second = 1/3600 hour 
 To convert meters to miles, we should multiply it by 1/1609
 To convert seconds to hour, we should multiply it by 1/3600 
 Therefore, 8 m/sec = 8 x (1/1609) Ă· (1/3600) 
 = (8 x 3600)/1609
  =17.9 miles / hr
You might be interested in
Sarah wants to buy carpet for a square room with an area of 400sq ft.
zavuch27 [327]

Sarah wants to buy a carpet for a square room with an area of 400sq ft.

the length of the room is 20ft.

Area is a quantity that describes the extent of an area on a plane or curved surface. The area of ​​a planar region or planar region refers to the area of ​​a shape or planar layer, and surface area refers to the area of ​​an open surface or boundary of a three-dimensional object. Wikipedia

The area is the area occupied by a two-dimensional figure. That is, it is a quantity that measures the number of unit squares that cover the surface of a closed figure. The standard unit of area is the square unit, commonly expressed in square inches, square feet, and so on.

Learn more about area here

brainly.com/question/17713367

#SPJ1

6 0
1 year ago
Will mark as brainliest if correct
stellarik [79]

Answer:

-2/3

Step-by-step explanation:

The only way the answer could be one is if the exponent is 0

So 3x-2=0:

3x = -2

x = -2/3

Hope this helps!

8 0
3 years ago
Need fast in plz help me quick
Eva8 [605]
6)x-7+10 7)3+x+1 8)8x-16 9)x/2-9
5 0
2 years ago
Read 2 more answers
54.7912 Rounded to the nearest hundredth
kupik [55]

Answer:

54.79 because if it's 4 and lower, you let them stay the same but if its five and above you let them go higher.

6 0
3 years ago
Salma is in charge of decorating the school gym for a party. She has budgeted some money for decorations. Balloons (x) cost $2.5
Artyom0805 [142]

Answer:

your answer would be A.

Step-by-step explanation:

Already you know that answers b and d are not an option because it is saying she can use OVER 45 dollars. So she has to use EQUAL or less then 45 dollars. So the answer has to be A or C. In answer C it is saying she can spend MORE then 2.50 for a bunch where she cant. She has to spend exactly or less then that amount. So your answer is A.

5 0
3 years ago
Other questions:
  • field hockey team is holding several fundraisers to save up enough money to buy team jackets. Babysitting earns $6 more than was
    10·1 answer
  • Nicole and her grandmother live in the same neighborhood, but a forest of trees separate their houses. If you left Nicole’s hous
    14·1 answer
  • What is the area of the rhombus shown below?
    13·1 answer
  • Which measurement could be a volume measure?<br><br> 17.9 ft2<br> 25.2 kg<br> 62.5 km<br> 12.4 ft3
    14·2 answers
  • Suppose that G(X) = F(x) - 3. Which statement best compares the graph of
    8·1 answer
  • The coordinates of the vertices of △GHI are G(−7,2), H(−2,2), and I(−2,8). Find the side lengths to the nearest hundredth and th
    8·1 answer
  • Which statement Is always true?
    6·1 answer
  • Need help ASAP DUE IN ONE DAY thanks
    14·1 answer
  • Someone please help with this question!! i will give you brainly if it’s right
    11·2 answers
  • Can you pls help me, i need it
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!