chatzigeorgiou100 chatzigeorgiou100
  • 03-11-2020
  • Mathematics
contestada

A blue light flashes every 9 minutes and a red light flashes every 12 minutes. In how many minutes will they both flash?

Respuesta :

Susurrus
Susurrus Susurrus
  • 03-11-2020

Answer:

36

Step-by-step explanation:

We need to find the LCM of both numbers. That is the least common multiple.

The prime factorization of [tex]9[/tex] is: [tex]3 * 3[/tex]. For [tex]12[/tex] it is [tex]2 * 2 * 3[/tex].

So we multiply: [tex]2 * 2 * 3 * 3 = 36[/tex]

Answer Link

Otras preguntas

Your vote does matter.TRUEFALSE
All of the following are possible effects of increased global temperatures, except __________. A. an increased frequency of severe weather B. an increase in dro
How does the punctuation of “A Narrow Fellow in the Grass” affect its meaning?
what are the factors of 294
Which of the following gases is the heaviest? H2S, NH3, CO, SO2
Explain how the discoveries by Rosalind Franklin helped Watson and Crick build an accurate model of DNA.
The diagram below shows four possible collisions between ethene and hydrogen chloride molecules. If contact by a hydrogen atom is required for an effective coll
The amount of matter refers to which property of matter? density volume mass weight
Identify the complete adverb clause. I'm going into the house because I'm cold. 1. I'm going 2. I'm going into the house 3. into the house 4. into the house bec
Which word defines ���lucid��� best? hideous rose-colored broken clear