Answer:
- 1) 120 seconds
- 2) 180 seconds
Step-by-step explanation:
<u>First light</u>
Shines 3 seconds first time plus after 6 seconds, the pattern is:
Off 6 seconds first time plus after 6 seconds, the pattern is:
<u>Second light</u>
Shines 4 seconds first time plus after 8 seconds, the pattern is:
Off 8 seconds first time plus after 8 seconds, the pattern is:
<u>Third light</u>
Shines 5 seconds first time plus after 10 seconds, the pattern is:
Off 10 seconds first time plus after 10 seconds, the pattern is:
1) <u>All lights will be off after:</u>
- LCM(6x, 8x, 10x) = 2*3*4*5x
- x = 1 ⇒ 120*1 = 120 seconds, next time
2) <u>All lights will come on after:</u>
- LCM(3 + 6x, 4 + 8x, 5 + 10x) = LCM(3(1+2x), 4(1+2x), 5(1 + 2x)) = 60(1 + 2x)
- x = 1 ⇒ 60(1 + 2) = 180 seconds, first time
Answer:
Bet lets run it whats your username?
Step-by-step explanation:
Answer:
Yes
Step-by-step explanation:
For GP, Tn = ar^(n-1), where a = first term and r = common ratio, again,
r = Tn/Tn-1
All we will do is to verify
if T2/T1 = T3/T2
192/256 = 144/192
0.75 = 0.75
Conclusion:
As T2/T1 = T3/T2 which is 0.75 = 0.75, therefore, It is a Geometric Progression (GP)
Answer:
0.5
Step-by-step explanation:
0.6 - 0.1 = 0.5
