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
Ray Of Light [21]
3 years ago
10

A car trip from New York to Cincinnati took 12.5 hours. The return trip by the same route took 1 hour longer because the average

rate of speed was 4 mph less. What is the length of the route?
Mathematics
1 answer:
zhenek [66]3 years ago
4 0

A car trip from New York to Cincinnati took 12.5 hours. The return trip by the same route took 1 hour longer.

Let x be the speed of the car

Car trip from New York to Cincinnati

We know Distance D = speed * time

time = 12.5 hours and speed =x

D = 12.5x

Return trip

The return trip by the same route took 1 hour longer. So 12.5+1 = 13.5 hours

he average rate of speed was 4 mph less. So speed is x-4

Distance D = speed * time

time = 13.5 hours and speed =x-4

D = (x-4)*13.5

D= 13.5x-54

The distance of ongoing trip and return trip are same

So we equate both the distance equations D= 13.5x-54  and D= 12.5x

12.5x = 13.5x-54    

Subtract  13.5 on both sides

-1x = -54

x=54

speed of ongoing trip = 54 miles per hour

Distance D = 12.5x = 12.5 * 54=675 miles

The length of the route = 675 miles



You might be interested in
Help me plz!!!!!!!!!!!!!!!!!!!!
inessss [21]

Answer:

14 2/3

Step-by-step explanation:

.....................

3 0
2 years ago
What is mZ1?<br> 490<br> 470<br> m21
zalisa [80]

490

Step-by-step explanation:

4333333

67

8

6 0
2 years ago
Ixl help ASAP PLZ HELP
frutty [35]

Answer:

(9,-6)

(9,2)

(8,2)

(8,-6)

Step-by-step explanation:

To reflect something over the y axis all you have to do is change the sign of the X coordinate

which means that

(-9,-6) is (9,-6)

The other answers are

(9,2)

(8,2)

(8,-6)

4 0
2 years ago
PLZ HELP!!! WILL GIVE HIGHEST POINTS IF THE ANSWER IS RIGHT!!
PilotLPTM [1.2K]

Step-by-step explanation:

Standard polynomial is:

- 20 {x}^{3}  - 3 {x}^{2}  + 4x

Leading co effecient is:

-20

8 0
3 years ago
The table to the right displays the weight progress of a
Vikki [24]

Answer:

The answer is 6 pounds.

Step-by-step explanation:

I figured it out by getting it wrong

7 0
3 years ago
Read 2 more answers
Other questions:
  • How do you do this question?
    12·1 answer
  • The average price of a gallon of regular gasoline in 2016 was $2.14. In 2017, the average price was $2.42 a gallon—an increase o
    5·1 answer
  • Chloe has 2 simps stalking her. She goes to a party, and 3 times the number of simps she already had, like her now. 4 simps are
    7·2 answers
  • Please help!
    13·1 answer
  • HELP PLEASE I WILL GIVE YOU THE BRAINLIEST
    12·1 answer
  • Round to the nearest hundredth:7.884
    6·1 answer
  • Of 600 students sampled, 480 said they hoped to own a house someday. With 99.7% confidence, what is the approximate percentage o
    12·1 answer
  • Which expression is equivalent to 4-x-x-x-x
    14·1 answer
  • Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
    6·1 answer
  • I don’t really understand how to get this one :/
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!