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
forsale [732]
2 years ago
5

A train leaves Little Rock, Arkansas, and travels north at 85 kilometers per hour. Another train leaves at the same time and tra

vels south at 85 kilometers per hour.
How long will it take before they are 680 kilometers apart?
Mathematics
1 answer:
Alchen [17]2 years ago
6 0

Answer:

4hours

Step-by-step explanation:

1hour =85+85

=170km/h

time= distance÷

speed=170km/h

680÷170=time

=4h

You might be interested in
If a point is equidistant from the endpoint of segment, then it is
Mashutka [201]

Hi

.... then it is  located on the perpendicular bisector.

7 0
3 years ago
Find f'(x). ,f(x)=radical3x+1<br>​
Juli2301 [7.4K]

Answer:

Step-by-step explanation:

hello :

here is an solution :

5 0
4 years ago
Find the equation of the line through point (8,−9) ( 8 , − 9 ) and perpendicular to 3+8=4 3 x + 8 y = 4 .
Leno4ka [110]

The equation of the line will be 3y + 8x = 165.

<h3>What is an equation?</h3>

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

Given that:-

  • Find the equation of the line through point (8,−9) ( 8, − 9 ) and perpendicular to 3 x + 8 y = 4.

The given equation of the line is:-

3 x + 8 y = 4.

The slope of this line will be:-

3 x + 8 y = 4.

8y = -3x + 4

y = -3 /8x + ( 1 / 2)

y = mx + c

m = -3 / 8

Since the line is perpendicular to the other line 3x +8y = 4 so the slope will be inverse and negative for the line.

So the slope of the line will be -8 / 3

The equation of the line passing through the point will be given as:-

y - y 1 = m ( x- x1)

y - (-9) = ( -8 / 3) ( x - 8)

Y + 9 = ( -8 / 3 ) ( x -8 )

3 y = -8x + 165

3y + 8x = 165

Therefore the equation of the line will be 3y + 8x = 165.

To know more about equations follow

brainly.com/question/2972832

#SPJ1

5 0
2 years ago
Trees are planted 6 metres apart on both sides of road 48 metres long.how many trees were planted​
Varvara68 [4.7K]

Answer:

16 on both sides

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
-7 u = -14/3. Solve for u.​
Gnoma [55]

Answer:

x = 2/3 is the answer. Good luck with work

8 0
3 years ago
Read 2 more answers
Other questions:
  • Y=5(x-2)(x+1) in standard form
    6·1 answer
  • Write an expression to represent the area of a rectangle if the length of a rectangle is three units more than its width
    6·1 answer
  • The sum of 3p and 6,cubed
    8·2 answers
  • A crystallographer measures the horizontal spacing between molecules in a crystal. The spacing is 14.8 nm . What is the total wi
    15·1 answer
  • Suppose an isosceles triangle abc has a=pi/4 and b=c=4. What is the length of a^2?
    10·1 answer
  • HELP!!!!! Suppose the distance between two cities on a map is 5.2in the scale is 1 in =80miles what's the actual distance betwee
    14·1 answer
  • Hannah works out 52 ÷ 10 and 4.6 × 100. She checks her answers by working backwards. Work out the answers to these questions. Ch
    5·1 answer
  • Check whether 90 is a perfect square or not by using prime factorization.​
    7·2 answers
  • IS MY ANSWER CORRECT??? *IF NOT PLEASE TELL ME THE CORRECT ONE, ITS FOR A QUIZ! *
    9·1 answer
  • After she graduated from college, Brianna began teaching at a salary of $28,750 a year. Which of the following choices shows Bri
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!