A green light blinks every 4 seconds and a yellow light blinks every 5 seconds. When will both lights blink at the same time?

20 seconds

Step-by-step explanation:

4 x 5 = 20

20 seconds

Step-by-step explanation:

LCM 4 times 5 is 20 just think abt it

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1

ans789

step-by-step explanation: