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
o-na [289]
3 years ago
12

two trains ,each 100 m long,moving in opposite directions ,cross each other in 8 seconds .if one is moving twice as fast as the

other train ,then the speed of the faster train is​
Mathematics
1 answer:
Feliz [49]3 years ago
8 0

Answer:

60 km/hr

Step-by-step explanation:

100+100

_______         =3x

      8

3x= 200/8

x=200/24 mps

=30mph

final speed is 60km/hr because its 2x's more =2*30=60

You might be interested in
Woodland high school
lesantik [10]
That is correct because it’s a real high school
8 0
3 years ago
Kara mixes different colors of paint to create new colors. The table shows the amount of paint Kara mixes per batch.
klemol [59]

Answer:

I've done this question: Its batch 5

Step-by-step explanation:

It has to be all equal proportions

4 0
2 years ago
Read 2 more answers
The inequality x ≥ -3 is satisfied by point (0, -2).<br> True<br> False
denpristay [2]
This inequality is true doll!!
8 0
3 years ago
Read 2 more answers
Which linear equation has no solution?
olga_2 [115]

Answer:

Option A

Step-by-step explanation:

Given:

  • a. 3x-5= 3x + 5
  • b. 3x-5= 3x - 5
  • c. 3x - 5 = 2x+5
  • d. 3x-5 = 2x + 10

To find:

  • Which one of the linear equations have no solution.

Solution:

a)  3x-5= 3x + 5

Add 5 to both sides

3x-5= 3x + 5

3x - 5 + 5 = 3x + 5 + 5

Simplify

(Add the numbers)

3x - 5 + 5 = 3x + 5 + 5

3x = 3x + 5 + 5

(Add the numbers)

3x  = 3x + 5 + 5

3x = 3x + 10

Subtract 3x from both sides

3x = 3x + 10

3x - 3x = 3x + 10 - 3

Simplify

(Combine like terms)

3x -3x = 3x + 10 - 3

0 = 3x + 10 - 3

(Combine like terms)

0 = 3x + 10 - 3

0 = 10

The input is a contradiction: it has no solutions

b)  3x-5= 3x - 5

Since both sides equal, there are infinitely many solutions.

c)  3x - 5 = 2x+5

Add 5 to both sides

3x = 2x + 5 + 5

Simplify  2x + 5 + 5 to 2x + 10

3x = 2x + 10

Subtract 2x from both sides

3x - 2x = 10

Simplify 3x - 2x to x.

x = 10

d) 3x-5 = 2x + 10

Add 5 to both sides

3x = 2x + 10 + 5

Simplify 2x + 10 + 5 to 2x + 15

3x = 2x + 15

Subtract 2x from both sides

3x - 2x = 15

Simplify 3x -2x to x.

x = 15

--------------------------------------------

Answer:

As you can see all c and d both have solutions, eliminating them as options. Option B has infinite solutions leaving Option A which has no solutions.

Therefore, <u><em>Option A</em></u> is the linear equation that has no solution.

3 0
2 years ago
Read 2 more answers
The figure below shows a shaded region and a non-shaded region. Angles in the figure that appear to be right angles are right an
qwelly [4]
I think dark regions
4 0
2 years ago
Other questions:
  • W + 1 = d and d = 3w solve by substitution
    9·2 answers
  • To the nearest tenth of a percent, what is 3/11 written as a percent?
    11·2 answers
  • The perimeter of a rectangular garden is 108 meters. The length is 6 meters longer than twice the width, find the dimensions of
    11·1 answer
  • If the y-intercept of graphed line is-72, what is the coordinate you would plot ?<br>​
    9·1 answer
  • Select the correct answer from each drop-down menu. The table lists the speeds of the fastest roller coasters in North America a
    14·2 answers
  • What is the equation 2y+4n=-6x in slope-intercept form
    9·1 answer
  • Solve n+m/p = q for the variable n
    8·2 answers
  • What does x equal 2(x-3)=14
    9·1 answer
  • Given the data below, what is the median?<br> 2, 4, 7, 4, 3, 1, 6, 8, 10, 15, 12, 22, 12, 15, 11
    6·2 answers
  • Is this function linear or nonlinear?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!