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
Serhud [2]
3 years ago
13

2019 Chapter Sprint Round, #20

Mathematics
1 answer:
nadezda [96]3 years ago
7 0

Answer:

Speed\ of\ car=38\ km/h

Step-by-step explanation:

Distance Covered by Horse:

Speed\ of\ horse=50\ km\h=50\times \frac{1000}{60}\ meter/ minute\\\\Speed\ of\ horse=\frac{2500}{3}\ meter/minute\\\\Distance\ covered\ in\ 4\ minutes=speed\times time=\frac{2500}{3}\times 4\\\\Distance\ covered\ in\ 4\ minutes=\frac{10000}{3}\ meters\\\\

Distance covered by Car:

Let\ speed\ of\ car=x\ meter/minute\\\\time=4\ minutes\\\\Distance\ covered=speed\times time=4\times x=4x

Distance\ covered\ by\ horse=Distance\ covered\ by\ car+800\\\\\frac{10000}{3}=4x+800\\\\4x=\frac{10000}{3}-800\\\\4x=\frac{7600}{3}\\\\x=\frac{7600}{3\times 4}\ meter/minute\\\\x=\frac{7600}{3\times 4}\times \frac{60}{1000}\ km/h\\\\x=38\ km/h

You might be interested in
Am I doing this right? I circled the answer that I got. We’re supposed to use division to solve the questions.. please let me kn
kifflom [539]
Both of your answers are correct!

so yes youre doing it right
3 0
3 years ago
Help i will be giving brainliest!!
Elena L [17]
See the photo attached below, answer is D

4 0
3 years ago
Jack runs at an average speed of 4 miles for one hour. He then cycles 6 miles at 12 miles per hour. find his average speed for t
igor_vitrenko [27]

He ran 4 miles per hour for one hour, which means he ran 4 miles.

He cycled 6 miles at 12 miles per hour, which means he cycled for one half an hour.


His total miles was 4 + 6 = 10 total miles.

His total time was 1 hour +  one half an hour = 1.5 hours.


His average speed is total distance divided by total time:

10 / 1.5 = 6 2/3 miles per hour.

3 0
3 years ago
Which statement accurately describes how to perform a 90° clockwise rotation of point A (1,4) around the origin?
labwork [276]

I was expecting a choice that said A(1,4) is in the first quadrant so 90 degrees clockwise is fourth quadrant.  For perpendicularity we reverse the coordinates, negating one of them.  For the fourth quadrant, it must be the y coordinate that's negative.  We end up at A'(4,-1).

The answer is the second choice:  create a circle with the center at the origin.  The image of A' will be on the circle, 90 degrees clockwise from A.

5 0
3 years ago
Read 2 more answers
5.6× 1/10 i need a answer pls
Usimov [2.4K]

Answer:

0.56

Step-by-step explanation:

Since 1/10 is 0.1 as a decimal you will then change it to 5.6 x 0.1 which would equal 0.56

Hope this helps :)

8 0
3 years ago
Read 2 more answers
Other questions:
  • A theater company charges $7.50 per ticket for people of all age groups. If c represents the total number of children who bought
    13·1 answer
  • Can someone explain how to answer this question please
    15·1 answer
  • Can someone please help me?<br><br>What is the measure of angle Z?​
    9·2 answers
  • Which phrase describes the variable expression 11 • x ?
    9·1 answer
  • Petrolyn motor oil is a combination of natural and synthetic oil. It contains 5 liters of natural oil for every 8 liters of synt
    7·1 answer
  • What is 2 fifth of 1 fourth
    11·2 answers
  • One week a company filled 546 boxes with widgets each box held 38 widgets how many widgets did the company pack in boxes that we
    9·1 answer
  • What is (1, -7) Translated 3 units to the Left, and 5 Units up?
    7·1 answer
  • Sum difference place value of 2 in 4242​
    9·1 answer
  • Solve for x. Round your answer to the nearest tenth.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!