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
Anuta_ua [19.1K]
3 years ago
13

if a sprinter runs are distance of hundred metres in 9.83 seconds calculate the speed in kilometre per hour​

Mathematics
1 answer:
My name is Ann [436]3 years ago
8 0

Answer:

98.3 seconds

Step-by-step explanation:

If you use stoichometry you can convert your units

9.83 seconds

over 100 meters    a kilometer is 1000 meters so

9.83/100 *10 because what you do to denominator needs to happen to numerator

98.3 seconds

over 1 kilometer

it take the sprinter 98.3 seconds to run a kilometer and one way to check is well a kilo is a longer distance so logically the time it takes them has to be higher cause they cannot run a kilo faster than they run 1/10 of it

You might be interested in
What is the length of the hypotenuse?
ch4aika [34]

Answer:

55.866 ft

Step-by-step explanation:

Use Pythagorean Theorem:

a² + b² = c²

(39)² + (40)² = c²

3121 = c²

Square root of both sides

c = 55.866 ft should be the answer.

Hope this helps

6 0
2 years ago
A hot bowl of soup cools according to Newtons law of cooling. Its temperature (in degrees Fahrenheit) at time t is given by T(t)
nata0808 [166]
212°F
147°F
23.2 min

1) Initial temperature for t=0
T(0)=68+144e^(0)=68+144=212°F
2) After 15 min
T(15)=68+144e^(-0.04*15)=68+144e^(-0.6)=147°F
3) 125°F -> t=?
125=68+144e^(-0.04t)
144e^(-0.04t)=125-68=57
e^(-0.04t)=57/144=0.4 you can apply ln on both sides:
-0.04t=ln(0.4) solving you get t=23.3 min


4 0
3 years ago
What is the common factor of each term in the expression 2b+5b?
S_A_V [24]
The common factor is b since it is divisible by both 2b and 5b
5 0
3 years ago
What times what equals 41
Hitman42 [59]
Assuming you mean whole numbers, 41 times 1 equals 41, or 1 times 41.
6 0
3 years ago
Read 2 more answers
What is the correct way to write a mathematical problem?​
Zina [86]

Answer:

Label your answer appropriately; if the question asks for measured units, make sure to put appropriate units on the answer. If the question is a word problem, the answer should be in words. In general, write your homework as though you're trying to convince someone that you know what you're talking about.

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Draw a number line to show that 2/3 and 6/10 are equivalent
    7·1 answer
  • Mark wrote the highest score he made on his new video game as the product of 70*6000. Use the associative and commutative proper
    11·1 answer
  • What is the equation of the line shown?<br><br><br><br> y - 2 = 0<br> y + 2 = 0<br> x - 2 = 0
    15·1 answer
  • Find perpendicular altitude for a triangle?
    12·1 answer
  • The actual length of the building is 72 feet. what is the scale of jackie's map?
    5·1 answer
  • 6 calculators cost $160 what is the rate and the unit rate
    7·1 answer
  • Given the figure below, which of the following points name a line segment, a line, or a ray?
    6·2 answers
  • Please help will give brainliest
    6·1 answer
  • The product of six and the sum of a number x and nine equals two times x subtracted from four.
    10·1 answer
  • Janine's family is designing a new garage. Use A  l  w to determine the area of the garage if the length l is 24 feet and the
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!