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
e-lub [12.9K]
3 years ago
7

a car can complete a journey of 300 km with a speed of 60 km per hour I) how much does it take the to complete the journey and w

hat is the speed of the car if it covers only 200 km in the same interval of time ​
Mathematics
1 answer:
Verdich [7]3 years ago
6 0

Step-by-step explanation:

First step:

Distance = 300km

Speed = 60km/hr

We know,

Using Speed = Distance ÷ Time

Time = Distance ÷ Speed

we have Total Time = 300÷60

Total Time = 5hr

Again,

Distance = 200km. (Time = 5hr,

Speed =? Distance = 200)

Speed = Distance÷ Time

= 200÷5

= 40km/hr

You might be interested in
Lupe can ride her bike at a rate of 20 mph when there is no wind. On one particular day, she rode 2 miles against the wind and
WARRIOR [948]

Hello there! Your answer should be 4 mph. Reasoning:

2 = (20 - x) * t 

3 = (20 + x ) * t 

Time is the same for both equations. Solve for T.

2/(20-x) = 3/(20+x)

the answer is 4 mph.

Please tell me if I was right!

4 0
3 years ago
Read 2 more answers
Hurry please answer questions 1, 2 and 3!!! thank you!!
chubhunter [2.5K]
What is the Pythagorean Theorem?

The PyTheorem states that -- actually, why not just simplify things and make it a formula?

a^{2} + b^{2} = c^{2}
where a and b are legs of a triangle and c is the hypotenuse of a triangle.

It is only true applying to right triangles.
Now what are the legs of a triangle? 
The sides that are NOT opposite the 90 degree angle! 

Now, all you have to do is find the LENGTHS of the three triangles!
Rise over run, remember?

Let's take the triangle in the top right of the coordinate plane for example.

A=(1,1)
B=(4,4)
unnamed point=(4,1)

Rise, or length of unnamed point to B?
(4,1) to (4,4)
(x,y), remember!
So? 4-1=3!

Run, or length of unnamed point to A?
(1,1) to (4,1)
Remember (x,y)?
So, 4-1=3!

The triangle has legs of 3 and 3.
Square em and add!
9+9=18
\sqrt{18}
\sqrt{3*6}
\sqrt{ 3^{2} *2}
3 \sqrt{2}

That's for length of AB!!
Now do the same for the remaining lengths!

Hope this helps!
8 0
3 years ago
What is an example of Rational numbers being used in everyday life?​
Sladkaya [172]

Answer:

In example when talking about some supply, half of it was sold or three fifths of what was there is gone. Fractions are a natural way of talking about sub unit quantities or just rationing supplies.

5 0
3 years ago
ALL IT SAYS IS SLOVE I REALLY NEED HELP PLEASEEE!!! THANK YOUUU
velikii [3]

Answer:

The answer for your question is C

8 0
2 years ago
HELLO WHO LIKES MR.BEAST!!!<br> also PLS ANSWER THIS QUESTION!
jarptica [38.1K]

Answer:

y = x-2

Step-by-step explanation:

Because y is always 2 less than x the second equation is correct.

5 = 7-2

6 = 8-2

And so on.

6 0
3 years ago
Other questions:
  • The square of a number is equal to 10 less than 7 times that number. What are the two possible solutions?
    7·1 answer
  • Help me with these questions
    9·1 answer
  • Jones like to watch the bird in her yard one morning she notices that there were twice as many robins as Blue Jays. if she count
    5·2 answers
  • ❗️HELP❗️ I need help with part a,b, and c. Idk if I got part a and b correct pls help me! Thank you
    12·1 answer
  • All simplified answers for 6x+1-(3x-1)
    10·1 answer
  • NEED ANSWER NOW!!!!!!!!!!
    5·2 answers
  • Help me please also whoever solves it correct ill mark him brainlist
    15·1 answer
  • Ray invested $300 in Stock A
    9·1 answer
  • PLEASE HELP ME Which of the following statements is not supported by the Venn diagram below?
    11·2 answers
  • Nipa exercises for 225 minutes a week. How many hours does she exercise in a year?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!