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
lianna [129]
3 years ago
6

Two cars that are 600km apart are moving towards each other. Their speeds differ by 6km per hour and the cars are 123km apart af

ter 4.5 hours. Find the speed of each car
Mathematics
1 answer:
Marina CMI [18]3 years ago
8 0

Answer: 56\ kmph,\quad 50\ kmph

Step-by-step explanation:

Given

Two cars are 600 km apart moving towards each other

Difference in their speed is 6 kmph

After 4.5 hr, they are 123 km apart that is, they covered a distance of 600-123=477\ km in 4.5 hours

Suppose their speeds is v_1\ \text{and}\ v_2

\therefore v_1-v_2=6\quad \ldots(i)

Also, distance traveled is given by

\Rightarrow 477=[v_1+v_2]4.5\\\Rightarrow v_1+v_2=106\quad \ldots(ii)

Solve, (i) and (ii) , we get v_1=56\ kmph\ \text{and}\ v_2=50\ kmph

You might be interested in
Power of powers property with and without variable 
goldenfox [79]

Answer:

This property states that to find a power of a power we multiply the exponents.

Step-by-step explanation:

Hope this helps!

8 0
3 years ago
Find the value of Z for the triangles
kolbaska11 [484]

Answer:

z = 17.5

Step-by-step explanation:

segment RX is an angle bisector and divides the opposite side into segments that are proportional to the other 2 sides, that is

\frac{RS}{RT} = \frac{SX}{TX} , substitute values

\frac{15}{z} = \frac{6}{7} ( cross- multiply )

6z = 105 ( divide both sides by 6 )

z = 17.5

4 0
3 years ago
A coastline recedes at a rate of 3cm per year. How much of the coastline dissappears after 4 years?
Damm [24]

Answer:

12 cm of coastline

Step-by-step explanation:

Multiply the years (factor) by the receding amount, 3cm, (constant) BAM answer.

3 0
3 years ago
9/25 is a fraction write each fraction as a decimal and as a percent
diamong [38]
I think its 0.36 and 36%
6 0
3 years ago
Read 2 more answers
2.8 divided 68.32 that's the homework
Anton [14]
68.32 divided by 2.8 is 24.4. I hope this helps!
3 0
3 years ago
Read 2 more answers
Other questions:
  • The weight of an object on Mars is about 3/8 its weight on Earth. If Sam weight 85 pounds on Earth, how much would he weigh on M
    5·1 answer
  • two family's decided to go spend the day at the water county water park the smith family purchased 3 adult tickets and one child
    8·1 answer
  • Triangle XYZ has been dilated to form triangle LMN. What is the least amount of information needed to prove the two triangles ar
    15·2 answers
  • Which of the following expressions are equivalent to (-19 + 3) - 6?
    7·2 answers
  • 30 points and brainly if correct
    7·2 answers
  • QUESTION 5
    6·2 answers
  • How long would it take Belinda's $800 investment to double in value if she has a bond with a 8.75% interest rate?
    13·2 answers
  • K+x=y<br> answer that please i need help!!!!
    14·1 answer
  • Liliana and Marcus are playing a word game. Liliana spells a word incorrectly and loses 18 points. Then Marcus spells a word cor
    13·1 answer
  • = #7 i
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!