Mathematics, 21.10.2020 22:01, jtrill

Here are three lamps. lamp C
lamp B
lamp A
Lamp A flashes every 20 seconds.
Lamp B flashes every 45 seconds.
Lamp C flashes every 120 seconds.
The three lamps start flashing at the same time.
How many times in one hour will the three lamps flash at the same time?

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 13:50, talahtoo6659

Is every rectangle is a parallelogram? true false

Answers: 2

continue

Mathematics, 21.06.2019 19:30, ndurairajownkpq

The cone in the diagram has the same height and base area as the prism. what is the ratio of the volume of the cone to the volume of the prism? h hl base area-b base area =b volume of cone_1 volume of prism 2 volume of cone 1 volume of prism 3 volume of cone 2 volume of prism 3 oc. od. volume of cone volume of prism e. volume of cone volume of prism 3 2

Answers: 3

continue

Mathematics, 21.06.2019 19:30, aljdones

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?

Answers: 3

continue

Mathematics, 21.06.2019 19:30, Davon21

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Answers: 3

continue

Do you know the correct answer?

Here are three lamps. lamp C
lamp B
lamp A
Lamp A flashes every 20 seconds.
Lam...