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
aleksandrvk [35]
3 years ago
7

If it takes 5 hours at a speed of 80 km/h to drive a fixed distance, what speed is required to do the same trip in 4 hours?

Mathematics
1 answer:
lozanna [386]3 years ago
7 0

Answer:

100 km/h

Step-by-step explanation:

Distance = Speed * Time

Let x be the distance:

x = 80 * 5

x = 400 km

400 / 4 = 100 km/h

Please mark as brainliest

You might be interested in
If a population consists of 100,000,000 people and a census is taken, how many people are sampled
alex41 [277]
100,000,000 people would be the correct answer
7 0
3 years ago
Read 2 more answers
5(x + 3) - 2 = 2 + 5x + 9
Lunna [17]

Answer:

There is no solution

Step-by-step explanation:

5(x + 3) - 2 = 2 + 5x + 9

5x+15-2-2-5x-9=0\\15-13=0\\2=0

There is no solution

because 2=0 is not possible.

8 0
3 years ago
Read 2 more answers
I need help in "Matlab' with how to "Create a column vector from 15 to -25 with a step size of 5"
Alekssandra [29.7K]

Answer:

x=[15:-5:-25]'

Step-by-step explanation:

In order to create a vector you need to use this command:

x = [j:i:k]'

This creates a regularly-spaced vector x using i as the increment between elements. j is the initial value and k is the final value. Besides you need to add the character ' at the end in order to convert the arrow vector in a column vector

5 0
4 years ago
Find the solution to the inequality -0.3x-5<6.7.
I am Lyosha [343]

Answer:

x > -39

Step-by-step explanation:

-0.3x < 6.7 + 5

-0.3x < 11.7

divide by -0.3

Answer is x > -39

6 0
3 years ago
PLEASE HELP IM ON A TIME LIMIT :(
Mice21 [21]

Answer:

hey hope this helps

<h3 /><h3>Comparing sides AB and DE </h3>

AB =

\sqrt{ {1}^{2} +  {1}^{2}  }

=  \sqrt{2}

DE

= \sqrt{ {(3 - 5)}^{2} +  {(1 + 1}^{2}  }  \\   = \sqrt{ {( - 2)}^{2}  +  {(2)}^{2} }  \\    = \sqrt{4 + 4}  \\  =  \sqrt{8}  \\   = 2 \sqrt{2}

So DE = 2 × AB

and since the new triangle formed is similar to the original one, their side ratio will be same for all sides.

<u>scale factor</u> = AB/DE

= 2

It's been reflected across the Y-axis

<em>moved thru the translation of 3 units towards the right of positive x- axis </em>

for this let's compare the location of points B and D

For both the y coordinate is same while the x coordinate of B is 0 and that of D is 3

so the triangle has been shifted by 3 units across the positive x axis

7 0
3 years ago
Other questions:
  • which equation is in slope-intercept form and represents a line with slope 3 through the point (9,-4)
    14·2 answers
  • A square has side lengths that measure 8 inches. A rectangle has a length of ten inches and a width of 5 inches. How many more s
    10·1 answer
  • Help me plz good points
    10·1 answer
  • The area of a circle with the radius 3 feet is ____ ft^2 ? Rounded to the nearest hundredths
    7·2 answers
  • WILL GIVE BRAINLIEST!!
    6·1 answer
  • Plz answer this very soon
    9·2 answers
  • Solve This Please 8 1/3 s for s = 4 1/2<br><br> A) 37 1/2<br> B) 32 1/5<br> C) 1 1/6
    13·2 answers
  • What is the value of x?
    14·1 answer
  • 20 POINTS I could really use some help​
    13·1 answer
  • Which of the following can be the third side of a triangle whose other two sides measure 8 inches and 10 inches
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!