Maths

three different lights flash every 5 seconds, 8 seconds and 12 seconds respectively. if they start at the same time how long will it take for them to flash at the same time again?

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
  1. common multiple
    5
    2*2*2
    2*2*3
    need
    5 2 2 2 3
    120

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  2. three different lights flash every 8 seconds every 5 seconds and every 12 seconds

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  3. What is answer

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    If an object is dropped from a height of 200 feet, the function h(t) = -16t^2 + 200 gives the height of the object after t seconds. Approximately when will the object hit the ground? a. 200.00 seconds b. 184.000 seconds c. 3.54

  2. algebra

    if an object is dropped from a height of 85 feet the function h(t)=-16t+85 gives the height of an object after t seconds aproximately, when will the object hit the ground A. 85 seconds B. 69 seconds C. 0.33 seconds D. 2.30

  3. Precalculus

    A ball is thrown with a slingshot at a velocity of 95 ft./sec. at an angle of 25 degrees above the ground from the height of 6 ft. Approximately how long does it take for the ball to hit the ground? Acceleration due to gravity is

  4. Math

    Radio signals travel at a rate of 3x10^8 meters per second.how many seconds would it take for a radio signal to travel from a satellite to the surface of earth if the satellite is orbiting at a height of 3.6x10^7 meters? A. 8.3

  1. math

    A ball is thrown into the air with an initial upward velocity of 48ft/s its height h in feet after t seconds is given by the function h = -16t^2 + 48t + 64 6 seconds 4 seconds 7 seconds 5 seconds

  2. calculus

    If a ball is thrown into the air with a velocity of 48 ft/s, its height in feet t seconds later is given by y = 48t − 16t2. (a) Find the average velocity for the time period beginning when t = 2 and lasting for each of the

  3. Math

    2 neon lights are turned on at the same time. One blinks every 4 seconds and the other every 6 seconds, how many times will they blink at the same time?

  4. maths

    a blue light flashes every 8 seconds and a red light flashes every 12 seconds both lights have just flashed together how many secons will they flash together

  1. math

    a red light winks every 6 seconds, a white one every 10 seconds, and a green one every 14 seconds. how often they wink together?

  2. maths

    On the coast there are three lighthouses. The first light shines for 3 seconds, then is off for 3 seconds. The second light shines for 4 seconds, then is off for 4 seconds. The third light shines for 5 seconds, then is off for 5

  3. physics

    A scooter acquires a velocity of 30km/hr in 10 seconds just after the start.it takes 20 seconds to stop.calculate the acceleration in the two cases

  4. statistics

    If a data set has a mean of 10.0 seconds and a standard deviation of 2.0 seconds, what is the Z score corresponding to the time of 4.0 seconds?

View more similar questions or ask a new question.