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
lakkis [162]
3 years ago
9

Dina and Masha start cycling on a 20 km bike path at the same time. When Dina reaches the end of the path, Masha still has 4 km

of the path left to cycle. If Dina's cycling speed is 10 km/h, how much time longer will Masha need to complete the path?
Mathematics
2 answers:
Ahat [919]3 years ago
8 0

Answer:

30 minutes

Step-by-step explanation:

sammy [17]3 years ago
7 0

Answer:

0.5 hour

Step-by-step explanation:

Given

Speed of Dina = 10 km/h

Distance = 20 km

So the time Dina taken to complete the track is:

Speed=\frac{distance}{time}\\10=\frac{20}{time}\\time=\frac{20}{10}\\ time=2\ hours

The time taken by Dina is 2 hours. As masha started with dina but she was 4 km of the path left to cycle,

her distance covered in 2 hours was:

Distance\ covered\ by\ Masha\ in\ 2\ hours=20-4\\=16 km

So we know the time and distance:

Now,

Speed\ of\ Masha=\frac{distance}{time}\\ =\frac{16}{2}\\ =8\ kilometer\ per\ hour

We have to calculate the time that will be needed by MAsha to complete the track:

As we know the speed and remaining distance

Speed=\frac{distance}{time}\\8=\frac{4}{time}\\ time=\frac{4}{8}\\time=0.5\ hours

Masha needs 0.5 hour to complete the track ..

You might be interested in
¿A cuál ecuación corresponde la expresión x=3?
Bas_tet [7]

Answer:

(8x − 2x ) + (−x − 2) = (5x − 3) − (4 −x ) a) Ecuación de Primer Grado. b)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Point M (-3, 6) and point 'N (1,-1) are located on a coordinate
lisabon 2012 [21]
The distance between point M and point is is about 8.06 units (rounded to nearest hundredth)
6 0
3 years ago
Kat has 19 coins, all quarters and dimes, that are worth a total of $4. The system of equations that can be used to find the num
pishuonlain [190]
14 is the answerrrrr
6 0
3 years ago
Read 2 more answers
What is the result of multiplying 2.5x10^10 by 3.5x10^-2?
mojhsa [17]
8.75^8 when you multiply you add your exponents and when you divide you subtract your exponents

5 0
3 years ago
Read 2 more answers
What's the probability of obtaining a 3 digit number at random which is DIVISIBLE by 7 ​
pochemuha

Answer:

  32/225 ≈ 0.1422

Step-by-step explanation:

If you consider "3-digit" numbers to be between 100 and 999, inclusive, there are 128 such numbers divisible by 7. The probability of choosing one at random is ...

  128/900 = 32/225 = 0.1422...(repeating)

__

If you consider all non-negative integers less than 1000 to be "3-digit numbers," then the probability is ...

  142/1000 = 0.142 (exactly)

6 0
3 years ago
Other questions:
  • The sum of two numbers are 62 and the difference is 18. Wjat are the numbers
    12·1 answer
  • What is the probability of winning a raffle if there are 500 tickets and you got 5
    9·1 answer
  • WA UTILEHTE.
    12·1 answer
  • Graph f(x)=12x+2.i need help
    14·1 answer
  • 100 Points! Will give brainliest!
    13·2 answers
  • Solve the following <br><br>1) 2(x + 3) = x - 4<br>2) 4(5x-2) = 2(9x+3)<br><br>PLS HELP ​
    5·1 answer
  • Help me please , I’ll really appreciate it
    14·1 answer
  • In a litter of five puppies, what is the probability of getting
    13·2 answers
  • Find the area of the rectangle with measurements shown; reduce to lowest terms: Length: 13 1/2 feet; Width: 10 2/3 feet
    6·1 answer
  • Selina claims single having one exemption. Her state tax deduction is 21% of her federal tax contribution. Calculate the amount
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!