lpereiracastr
lpereiracastr lpereiracastr
  • 14-05-2020
  • Mathematics
contestada

A red light blinks every 12 seconds and a blue light blinks every 9 seconds. When will both lights blink at the same time?

Respuesta :

S1NGH
S1NGH S1NGH
  • 14-05-2020

Answer:

36

Step-by-step explanation:

We need to find the LCM of the two numbers because we need to know the lowest number that 12 and 9 are both in.

12 × 1 = 12

12 × 2 = 24

12 × 3 = 36

12 × 4 = 48

9 × 1 = 9

9 × 2 = 18

9 × 3 = 27

9 × 4 = 36

We can see that 36 is the lowest number that occurs both in 12 and 9 so the blue and red light will both link at 36 seconds

Answer Link

Otras preguntas

The words "high altitudes, harsh climate, and few trees" describe which United States ecosystem? Alpine Deciduous forest Desert Grassland
American expansion abroad was fueled by all of the following EXCEPT __________. the closing of the frontier a rise in industrial production fear of being closed
Supporters of bilingual education point out that:
Factor each expression. Show your work. 11. r2 + 12r + 27​ ​​
Which group contains the names of three Latin American "freedom fighters" of the Independence era?
Puritans believed that salvation depended on
Which of the following was a prominent Federalist
Who created the first European settlement in Greenland? the British the French the Spanish the Viking
By the 1700s, France and England were primarily in conflict with each other over
In 1917, Congress passed a law over President Woodrow Wilson's veto that said that those who were over age 16 and unable to pass a(n) __________ test could not