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
Lina20 [59]
3 years ago
15

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. If the speed of the ca

r which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?
Mathematics
1 answer:
IgorC [24]3 years ago
8 0

Answer:

5mph

Step-by-step explanation:

Given that two cars are 40 miles apart at the beginning.

They started at the same time with speeds 48 mph and 56 mph respectively

Since both cars are travelling in the same direction,

Relative velocity = Speed of the behind car-Speed of the first car

=56-48 =8mph

To catch the I car, the second car has to travel a distance of 40 miles extra in the same time as the I car

i.e. speed to be made up by the second car = 40 miles

Relative velocity per hour              = 8mph

Hence time taken to catch up = \frac{40}{8} =5mph

You might be interested in
Simplify 15.6 divided by negative 3.
Aleks04 [339]

Answer:

-5.2

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
can someone please help out ?? question is "Explain in words where the mistake in the solution of the inequality is." help is so
DaniilM [7]
The mistake is the sign,
The sign must be switched
So therefore x > -5
6 0
3 years ago
Please help to solve this question
irina1246 [14]

Answer:

Step-by-step explanation:

4 0
2 years ago
Justify your reasoning when solving the equation: 3(x+4)=8x-18
vampirchik [111]

Answer:

6

Step-by-step explanation:

3x plus 12= 8x -18

subtract twelve on both sides:

3x= 8x- 30

minus 8x on both sides:

-5= -30

divide:6

3 0
2 years ago
The country of benin in west Africa has a population of 9.05 million people. The population is growing at a rate of 3.1% each ye
Oksanka [162]
The function would be the initial plus growth rate * # years

So: f(x) = 9.05 + 0.031(7)
Where x= # years
3 0
2 years ago
Other questions:
  • What is the expected length of a sequence that is monotonically increasing when drawn from the distribution?
    14·1 answer
  • The measure of Angle E, the angle of elevation from point A to point B, is ( 3 x plus 1 ). The measure of Angle D, the angle of
    5·1 answer
  • The area of sofia’s herb garden is 1/8 the area of her vegetable garden. the area of her herb garden is 6 square feet. what is t
    5·2 answers
  • Solve for x:<br><img src="https://tex.z-dn.net/?f=%28x%20%20-%205%29%5E%7B2%7D%20%20%3D%209" id="TexFormula1" title="(x - 5)^{2
    9·2 answers
  • What is the quotient of 6 divided by 3/4
    8·2 answers
  • local Readers Club has a set 36 hardback books and a set of 30 paperback books each set can be divided equally among the club me
    7·2 answers
  • 5. Solve. 2 Questions only 86 points<br> c) 9.3 = 3n<br> d) 2n - 2.5 = 5.5
    12·1 answer
  • A contractor rents a trailer truck to
    13·1 answer
  • Find the volume of the sphere
    6·1 answer
  • Compute the amount of interest earned in a deposit of $9,000 at 8.5% for 90 days.<br><br> $
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!