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
serious [3.7K]
3 years ago
13

Two cars start to drive around a 2 km track at the same time. car x make one lap every 80 seconds while car y makes one lap ever

y 60 s
(a)how long will it take for the cars to be at their starting point again? give your answer in minutes.
(b)how long will it take to the faster car to be ahead by 15 laps? give your answer in hours.
Mathematics
1 answer:
Volgvan3 years ago
8 0

Answer:

20 minutes

Step-by-step explanation:

Both will meet again at start point after LCM(60,80) seconds.

That is 240 seconds.

in time slower car completes one lap, faster one covers 1 +20/80 lap, that is 1.25 laps. After 20 laps faster by slower car car will be 5 laps ahead, time =20*60 = 1200s = 20 minutes.

hope it help

You might be interested in
Rewrite x - 3y = 6 in slope-intercept form.
Rudik [331]

Answer:

use formula y=mx+c

x - 3y = 6 \\ x - 6 = 3y \\ x -  \frac{6}{3} = y \\ x  - 2 = y \\ y = x - 2

so the answer is B

5 0
2 years ago
Read 2 more answers
One day each summer, Chandler earns money by having a lemonade stand in his neighborhood. He charges $0.50 per glass of lemonade
alex41 [277]
He sold 48 glasses of lemonade.
5 0
3 years ago
Read 2 more answers
Pls, what is surface area?​
Lostsunrise [7]

Answer:24

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Can someone please help on these three questions? Extra points have been added.
san4es73 [151]
56) the answer is 3x+10
                             _____
                                  5
If they want it simplified it will be 3x+2


57) x+40
      ____
         5          
If they want it simplified it would be x+8


I'm not sure about 58 sorry I hope this helps a little.
6 0
3 years ago
Help ASAP! 25 points! I will also give brainliest!
Kazeer [188]

Answer:

756 m²

Step-by-step explanation:

I just know the answer XD

3 0
3 years ago
Other questions:
  • Does anyone know the answer what to add and multiply because I really don't get it
    9·2 answers
  • What is 26 39 I want to know what is the answer
    15·1 answer
  • NEED HELP FAST PLEASE.
    8·1 answer
  • A partnership owned equally by 15 partners is worth $1.5 million. The partnership loses a lawsuit
    12·1 answer
  • I have no idea on how to do this TwT​
    5·1 answer
  • Convert the speed of light (3.0 x 10^8m/s) from meters per second (m/s) to nanometers per picosecond (nm/ps)
    8·1 answer
  • 60/8+X + 60/8-X = 16
    14·1 answer
  • Parallel lines have the same slope
    11·2 answers
  • Find the approximate area of a semicircle with a radius of 6 centimeters.
    8·1 answer
  • A 50 g sample a vinegar contain 6% by mass acetic acid mixed with water. What is the mass of acetic acid in the sample?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!