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

79,000 people live in a circular region with a population density of 513 people per square mile. What is the radius of the region
Someone better answer...What is the theme of act your age 1.Friends are more important. 2.Be true to your self. 3.Be careful what u which for 4.Aways work hard
Alexander is measuring the width of objects. The smallest measurement his ruler displays is centimeters. Rather than rounding to one significant figure beyond
Choose the correct solution to the equation. -3+w= a. 2 b. Ž ch d. None of the Above Оа Ob Ос Od
Janet introduces her friend Sara to you. Write her introduction and your reply
Plans to launch a colony in Virginia started when
A car moves a distance of 100m in 12 seconds. what is the average speed in km/h​
During which step of cellular respiration is the most ATP produced? A. Krebs cycle B. glycolysis C. photosynthesis D. electron transport chain
At the local orchard, 1 3 of all the trees are apple trees, 2 5 are pear trees, and the rest are plum trees. What fraction of all the trees at the orchard are p
dilations PLEASE HELP ME PLEASE