Here, we are required to determine how many hours will it be until the next instance when both foghorns sound at the same time.
The <em>lighthouse A and B </em>will have their foghorns sound at the same time after 30 hours.
- <em>Since lighthouse A sounds it's foghorn every 3hours, and lighthouse B sounds it's foghorn every 10 hours.</em>
To determine the next time when both foghorns sound at the same time;
We need to determine the lowest common multiple (LCM) of 3 and 10.
- The <em>lowest common multiple</em> of 3 and 10 is therefore 30.
As such, the foghorns sound at the same time after 30 hours of when the foghorns sounded the same time.
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Answer:
The Probability that the spinner landed on the colors blue and green in any order = 2/9
Step-by-step explanation:
Given - Azul spun a tri-color spinner twice.
To find - What is the probability that the spinner landed on the colors blue and green in any order?
Solution -
Given that,
A tri-color spinner spun twice
So,
The Sample Space, S = {BB, BG, BY, GB, GG, GY, YB, YG, YY}
⇒n(S) = 9
Now,
Let A be an event that the spinner landed on the colors blue and green
So,
A = {BG, GB}
⇒n(A) = 2
Now,
Probability that the spinner landed on the colors blue and green in any order = n(A) ÷ n(S)
= 2 ÷ 9
∴ we get
The Probability that the spinner landed on the colors blue and green in any order = 2/9
17. Sample answer: the elevation is the product of the rate and the time
18. $227.50; sample answer: $45.50 ≈ $50, and $50 × 5 = $250,
which is close to $227.50.
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Answer:
120 minutes
Step-by-step explanation:
Jelisa walked 6 miles in 90 minutes
The amount of mile walked in 1 minutes is
= 6/90
= 0.0666666
If she walks 0.066666 miles in 1 minute then in for 8 miles she travels
= 8/0.066666
= 120 minutes