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

Which is equal to 42 • 48? a. 416 b. 410 c. 46 d. 4−6
why might breaking a canon law be worse for an individual than breaking a governmental law
Why is most of the mass of an atom is located in the nucleus?
order from least to greatest 0.6 4/5 0.75
An antonym is a word that's A. defined in a thesaurus. B. pronounced the same. C. the same in meaning. D. opposite in meaning.
Solve the following system of equations using substitution. u = 6 + t 36 = 2t + u A. t = 10, u = 16 B. t = 10, u = 4 C. t = 14, u = 20 D. t = 16, u = 22
Fish, poultry, lean meats, and nuts should be consumed for which of the following nutrients? a. calcium b. carbohydrates c. protein d. vitamin D
What does audacity means
In which of the following present-day areas was the Folsom culture found?
True or false? The movement of matter cannot occur without energy transfer.