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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?

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  1. 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?
  2. math

    on a radio tower, a red light flashes every 6 seconds and a blue light flashes every 10 seconds. if both lights flash together at a certain time, how many seconds later will both lights flash together the next time
  3. Mathematics

    A blue light flashes every 8 seconds A red light flashes every 12 seconds Both lights just flashed together How many seconds will both lights flash togetherness?
  4. Math

    the green light flashes every 3 seconds,the red every 5 seconds and white at 10 seconds. iF they flash at 12 noon.When will they flash together again in a minute? in an hour?
  5. NUKMERACY

    THERE ARE 3 LIGHT HOUSES,THE FIRST ONE SHINE FOR 3 SECONDS, THEN IS OFF FOR 3 SECONDS.the 2 one shine for 4 seconds then is off for 4 seconds.the 3 one shine for 5 seconds,then is off for 5 seconds.all thr 3 lights have just come together.when is the first
  6. 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
  7. 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 seconds. All three lights
  8. 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
  9. Mathematic

    One neon sign flashes every 6 seconds . Another neon sign flashes every 8 seconds . If they flash together and you begin counting seconds , how many seconds after they flash together will they next flash together
  10. Math

    Three seta of lights blink after 6 seconds, 8 seconds and 12 seconds respectively. What is the least number of seconds it would take for the lights to blink together.
  11. Physics

    If the vertical component of velocity for a projectile is 7.3 meters/second, find its hang time. A. 1.9 seconds B. 2.5 seconds C. 5.6 seconds D. 6.7 seconds E. 7.1 seconds
  12. Physics

    If the vertical component of velocity for a projectile is 7.3 meters/second, find its hang time. A. 1.9 seconds B. 2.5 seconds C. 5.6 seconds D. 6.7 seconds E. 7.1 seconds
  13. math

    3 lights started at the same time..1st blinks at 5 seconds, 2nd at 6 seconds and 3rd at 4 seconds...how often will they blink at the same time
  14. mathematics

    A bell rings every 2 seconds, and a bird chirps every 3 seconds. If the ring ant the chirp occur together right now, they will occur together in A. 40 seconds B. 41 seconds C. 42 seconds D. 43 seconds
  15. maths

    a lighthouse flashes 3 seconds the second 4 and the third 5 seconds they flash initially al together when will they flash again together
  16. Math

    Solve the proportion: You can find the distance from a thunderstorm by counting the number if seconds between the lighting flash and thunder. For example, if the time difference in 21 seconds, then the storm is 7 km away. How far away is the storm if the
  17. Math

    A bell rings every 2 seconds, and a bird chirps every 3 seconds. If the ring and the chirp occur together right now, they will occur together in A. 40 seconds B. 41 seconds C. 42 seconds D. 43 seconds
  18. Statistics

    Waiting times to receive food after placing an order at the sandwich shop follow an exponential distribution with a mean of 46 seconds.? Calculate the probability a customer waits: a.) Less than 26 seconds b.) More than 105 seconds c.) Between 38 and 60
  19. Math

    Two lights flash every 15 and 45 seconds respectively.If the two lights flashed together at 3 p.m.,at what time will they flash together next time?
  20. Math

    Three lighthouses on three nearby islands flash their lights every evening. On one island, the light flashes every 45 seconds. The lighthouse on the second island flashes every 2 minutes. The third lighthouse flahses a light every 1 and 1/4 minutes.
  21. Calculus (Derivatives)

    Two particles are moving in straight lines. The displacement (in meters) of particle 1 is given by the function e^(4cos(t)) , where t is in seconds. The displacement (in meters) of particle 2 is given by the function -(t^3)/(3) - (t^2)/(2) + 2 , where t is
  22. math

    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 following. (i) 0.5 seconds ft/s
  23. 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 following. (i) 0.5 seconds ft/s
  24. health

    Every ________, nerve impulses stimulate the breathing process, or ventilation, which moves air through a series of passages into and out of the lungs. A. 5 to 7 seconds B. 3 to 5 seconds C. 1 to 3 seconds D. 7 to 9 seconds I think its B
  25. Health

    Every ________, nerve impulses stimulate the breathing process, or ventilation, which moves air through a series of passages into and out of the lungs. A. 5 to 7 seconds B. 3 to 5 seconds C. 1 to 3 seconds D. 7 to 9 seconds B?
  26. Math

    I am very confused on how to figure out the below math problem: A traffic light changes every 30 seconds. Another traffic light changes every 40 seconds. Both lights just changed. After how many minutes will both lights change at the same time again?
  27. Algebra 1

    Hi, I have this question to answer and I am just really confused I don't know where to begin we haven't had a question like this so I'm totally bewildered. Anyway here is my question. Any help is greatly appreciated! Thank you so much for your time!!!
  28. Calculus

    If a ball is thrown straight up into the air with an initial velocity of 95 ft/s, its height in feet after t seconds is given by f(t)=95t−16t^2 Find the average velocity for the time period beginning when t=1 and lasting (i) 0.5 seconds (ii) 0.1 seconds
  29. Math

    Two neon lights are turned on at the same time. One blinks every 4 seconds and the other blinks every 6 seconds. In 60 seconds, how many times will they blink at the same time?
  30. Physics

    A car accelerates from rest with a uniform acceleration of 1.7m/s for 10 seconds, its acceleration then reduces by 0.3m/s for 20 seconds of the motion, it then maintains the speed attained for another 20 seconds after which it decelerates to rest within 10
  31. Pre-Calc

    A ferris wheel is 63 feet tall when it reaches its highest point at 8 seconds. At the bottom of the ride, you are 3 feet off the ground. So how high off the ground will you be 5 seconds after the ride starts? Write a function f so that f(t) will equal how
  32. math (NEW ANSWERS)

    identify the fraction that is equivalent to 3/8. A.15/32 B.12/32(I PICKED THIS) C.12/24 D.9/32 -------------------------- A video game has three villains who appear on screen at different intervals.one villain appears every 5 seconds,a second villain
  33. math

    Six boys ran a 100m race.Time taken to run the race is 14 seconds. The time in seconds taken by each boy is shown below. Al - 11 seconds Ben 12 Seconds Che - 14 Seconds Don - 12 Seconds Eze - 10 Seconds and Fred - 13 Seconds a) Who won the race b) For
  34. Algebra

    Suppose a young child throws a tennis ball into the air as hard as he can. Which of the following is the most reasonable solution for the time it takes the ball to land? A- (6 seconds) B- (1.1 seconds) C- (−2 seconds) D- (10 seconds)
  35. Math

    4 members of a relay team each ran one lap of a race. THeir times were 58.4 seconds 58.07 seconds 57.8 seconds and 58.46 seconds. Put the numbers in order from fastest time to slowest time 57.8 58.07 58.40 58.46
  36. Physics, Please help!!!

    A car accelerates at a constant rate from zero to 32.6 m/s in 10 seconds and then slows to 14.8 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds? What was the acceleration during the first 10 seconds
  37. Physics

    A car accelerates at a constant rate from zero to 36.8 m/s in 10 seconds and then slows to 13.9 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds? What was the acceleration during the first 10 seconds
  38. physics help!

    A car accelerates at a constant rate from zero to 32.6 m/s in 10 seconds and then slows to 14.8 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds?
  39. Science- Physics Problem

    I don't know if im doing these problems right, please help... A car accelerates at a constant rate from zero to 32.6 m/s in 10 seconds and then slows to 14.8 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15
  40. Physics

    A car accelerates at a constant rate from zero to 25.6 m/s in 10 seconds and then slows to 14.4 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds? What was the acceleration during the first 10 seconds?
  41. Math

    A model airplane is shot up from a platform 1 foot above the ground with an initial upward velocity of 56 feet per second. The height of the airplane above ground after t seconds is given by the equation h=-16t^+56t+1, where h is the height of the airplane
  42. statistics

    According to a bank, the time taken by its customers to use cash dispensing machines is normally distributed with a mean of 18 seconds and a standard deviation of 3 seconds. I) What is the probability that a customer selected at random takes less than 13
  43. Math

    One caution sign flashes ever 4 seconds, and another caution sign flashes every 10 seconds. At a certain instant, the 2 signs flash at the same time. How many seconds elapse until the 2 signs next flash at the same time? A. 6 B. 7 C.14 D. 20 E. 40
  44. intergrated science

    Keiko is riding a skateboard 2 m/s, west. How long will it take her to reach a velocity of 8 m/s, west if her acceleration is 2 m/s2? 3 seconds 6 seconds 8 seconds 10 seconds
  45. Math

    Keiko is riding a skateboard 2 m/s, west. How long will it take her to reach a velocity of 8 m/s, west if her acceleration is 2 m/s2? 3 seconds 6 seconds 8 seconds 10 seconds
  46. science

    Keiko is riding a skateboard 2 m/s, west. How long will it take her to reach a velocity of 8 m/s, west if her acceleration is 2 m/s*2? 3 seconds 10 seconds 8 seconds 6 seconds
  47. Math

    . At a track meet, 50 people ran the 100-meter dash. 2 people finished in 11 seconds, 5 people finished in 12 seconds, 8 people finished in 13 seconds, 10 people finished in 14 seconds, 21 people finished in 15 seconds, 2 people finished in 16 seconds, and
  48. Math

    At a track meet, 50 people ran the 100-meter dash. 2 people finished in 11 seconds, 5 people finished in 12 seconds, 8 people finished in 13 seconds, 10 people finished in 14 seconds, 21 people finished in 15 seconds, 2 people finished in 16 seconds, and 2
  49. Geometry Part 2

    At a track meet,50 people ran the 100- meter dash.2 people finished in 11 seconds,5 people finished in 12 seconds,8 people finished in 13 seconds,10 people finished in 14 seconds,21 people finished in 15 seconds,2 people finished in 16 seconds,and 2 people
  50. Math

    A density graph for all of the possible times from 50 seconds to 200 seconds can be used to find which of the following? A. The probability of a time from 75 seconds to 250 seconds B. The probability of a time from 75 seconds to 150 seconds C. The
  51. Calculus

    If a ball is thrown straight up into the air with an initial velocity of 95 ft/s, its height in feet after t seconds is given by f(t)=95t−16t^2 Find the average velocity for the time period beginning when t=1 and lasting (i) 0.5 seconds (ii) 0.1 seconds
  52. 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?
  53. 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 seconds***
  54. 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 seconds B. 1.2x10^-1 seconds
  55. Algebra

    Radio signals travel at a rate of 3*10^8 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 4.2*10^7 meters? (Hint: Time is distance divided by
  56. Math

    Reason A new student joins Ms. Sousa's class. That student can say the alphabet in 3 1/2 seconds. What is the new difference between the greatest length of time and the least length of time? A. 4 1/2 seconds B. 4 seconds C. 3 1/2 seconds D. 3 seconds
  57. Physics

    The distance time graph shows a cart moving at a straight path. a. Describe the speed of the cart between: 1.) A and B - The cart is moving with constant speed for 10 seconds and it is now at rest for 20 seconds. 2.) B and C - The cart at rest for 20
  58. math

    Lola needs to sign 96 invitations. Using a stopwatch that measures time to tenths of a second, it takes Lola 5.3 seconds to sign her full name. Going by the accuracy of the stopwatch, which is the most accurate determination for the number of seconds Lola
  59. 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 32 ft./s^2. A. 2.65
  60. Physics

    Two cars with different motors are competing. One of the cars accelerate från 0-90 km/h on 12 seconds, the other one accelerate from 0-90 km/h on 20 seconds. The acceleration is the same all the time. After 90km/h, the velocity is constant. How many
  61. algebra--1 question

    Radio signals travel at a rate of 3 * 10^8 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 9.6 * 10^6 meters? (1 point) 3.2 x 10^2 seconds
  62. Statistics

    A song must be n longer than 3 minutes and 30 seconds, or (210 seconds) Micheal Jackson founds out that his mean song length is 244.6 seconds with a standard deviation of 29/3 seconds. What is the null hypothesis and the alternative hypothesis, what is the
  63. Statistics

    A song must be n longer than 3 minutes and 30 seconds, or (210 seconds) Micheal Jackson founds out that his mean song length is 244.6 seconds with a standard deviation of 29/3 seconds. What is the null hypothesis and the alternative hypothesis, what is the
  64. Math

    Now can you please tell me if I am right for the following problems: The speed of rain is about 1,100 feet per second. If you observe a flash of lighting and then hear the thunder 5 seconds later how far away from you did the lighting strike? Is this less
  65. physical science

    Riding his bike, Dewayne can start from rest and get going at 12 m/s in 4 seconds. Beth can get going 16 m/s in 5 seconds. Who has a greater acceleration? How do you know?
  66. maths

    a light house flashes every 56 seconds. Another lighthouse flashes every 40 seconds. At 9 p.m. they both flash t the same time. What time will it e when they next both flash at the same time?
  67. programming

    Prompt the user to enter a number of seconds. Return to the user the hours, minutes and seconds.Example: Enter seconds: 1000 1000 seconds = 0 hour, 16 minutes, 40 seconds Hint: use the modulus operator.
  68. physics

    A car accelerates at a constant rate from zero to 28.7 m/s in 10 seconds and then slows to 17.5 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds?
  69. physics

    A car accelerates at a constant rate from zero to 20.5 m/s in 10 seconds and then slows to 15.9 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds?
  70. physics

    A car accelerates at a constant rate from zero to 37.8 m/s in 10 seconds and then slows to 13.5 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds?
  71. Physics

    A car accelerates at a constant rate from zero to 25.6 m/s in 10 seconds and then slows to 14.4 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds?
  72. Physics

    a car accelerates at a constant rate from zero to 26.7 m/s in 10 seconds and then slows to 19 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s^2 during the 15 seconds?
  73. Math

    A car traveling at 25 mi/h accelerates to 48 mi/h over the first 5 seconds. It maintains that speed for the next 5 seconds, and then slows to a stop during the next 5 seconds. Connections answers please?
  74. Physics

    A car accelerates at a constant rate from zero to 36.8 m/s in 10 seconds and then slows to 13.9 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds?
  75. physics

    what is the answer for this a car starts from rest at 0.8 meters pre seconds for 10 seconds and contiunes for a further 20 seconds what is the distance travelled
  76. Physics

    A car accelerates at a constant rate from zero to 23.3 m/s in 10 seconds and then slows to 15 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s^2 during the 15 seconds?
  77. Mathematics

    A red light flashes every 8 seconds. a green Light flashes every 6 seconds. Kyle sees them flashing At the SAME time. When will he see them flash together agian?
  78. Math

    The completion times for three runners in a 100-yard dash are 9.75 seconds, 9.7 seconds, and 9.675 seconds. Which is the least time?
  79. math

    A car traveling at 25 mi/h accelerates to 48 mi/h over the first 5 seconds. It maintains that speed for the next 5 seconds, and then slows to a stop during the next 5 seconds. does anyone know because i have no clue here?
  80. Physics

    Mary walks west at 2.0m/s for 15 seconds, then north at 3.0m/s for 2o seconds and then east at 4.0m/s for 0 seconds. What is her displacement answer is (108m(N56 DEgrees E)
  81. Statistics

    A student can run the 100 yard dash in a mean of 15.2 seconds with a standard deviation of 0.9 seconds find the percent of times that are less than 17 seconds
  82. Math

    It takes the earth about 31,558,100 seconds to circle the sun. By how many seconds does this exceed the number of seconds in 365 days?
  83. 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
  84. Calculus

    A particle moves along a line so that its posistion at any t is greater than or equal to 0 is given by the function s(t)= t^3-8t+1, where s is measured in feet and t is measured in seconds. a) find the displacement during the first three seconds b) Find
  85. Math

    Radio signals travel at a rate of 3x10^8 meters per second period how many seconds will it take for a radio signal to travel satellite to the surface of earth if the satellite is orbiting at a height of 4.2x10^7 meters? (Hint: Time is distance divided by
  86. sgfrsargehw

    . A car traveling at 25 mi/h accelerates to 48 mi/h over the first 5 seconds. It maintains that speed for the next 5 seconds, and then slows to a stop during the next 5 seconds
  87. physics

    A car starts at rest then accelerates at a constant rate to 11.9 m/s in 10.0 seconds. It then slows to 1.5 m/s during the next 5.0 seconds. To the nearest hundredth of a m/s 2 , what is the average acceleration during the first 10.0 seconds?
  88. physics

    A car starts at rest then accelerates at a constant rate to 11.9 m/s in 10.0 seconds. It then slows to 1.5 m/s during the next 5.0 seconds. To the nearest hundredth of a m/s 2 , what is the average acceleration during the first 10.0 seconds?
  89. 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 seconds d. 0.78 seconds
  90. maths(Please help me out)

    A survey of mobile call interconnectivity indicates that the average time it takes to connect calls from one network to the other is 25 seconds.Assume the variable is approximately normally distributed and the standard deviation is 4.5 seconds.if 80 calls
  91. Physics

    A car moves at 12 m/s for 30.0 seconds. It then accelerates at 1.5 m/s^2 for 8.00 seconds. Finally, it continues on at this top speed for another 12.0 seconds. Calculate the net displacement during the whole time interval.
  92. Math

    If a red light flashes every 3 seconds, a blue light flashes every 4 seconds and a blue light flashes every 5 seconds and they all flashed together at midnight when would be the next time they all flash together?
  93. Math

    1 mintue 25 seconds converted into seconds. I know there are 60 minutes in an hour and seconds 60 in a minute. Am I just dividing by 60??
  94. 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?
  95. 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?
  96. math

    A physical fitness association is including the mile run in its secondary-school fitness test. The time for this event for boys in secondary school is known to possess a normal distribution with a mean of 450 seconds and a standard deviation of 40 seconds.
  97. stats

    a sample of 16 atm transactions shows a mean transaction time of 67 seconds with a standard deviation of 12 seconds. State the hypotheses to test whether the mean transactiontime exceeds 60 seconds
  98. physical science 2

    It takes 6 seconds for a stone dropped from rest to the bottom of a well,what is its final speed A; 6 meters/second B: 30 meters/seconds C: 36 meters/seconds D: 60 METERS/SECONDS A is incrrect
  99. Physics

    A ball is rolled off a horizontal roof at 6m/sec , after leaving the roof how long it will take to reach a speed of 10 m/sec? A. 0.20 seconds B. 0.81 seconds C. 1.8 seconds D. 2.5 seconds
  100. Algebra 1

    a boulder is thrown launched into the air with an upward velocity of 184 ft per second. Its height h in feet after t seconds is given by the function h(t)=-16t^2 +184t+6. How long does it take the boulder to reach its maximum height? What is the boulder

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