Answer:
11.1 miles.
Step-by-step explanation:
1 inch is 7.4 miles.
1.5 inch is 7.4 times 1.5 miles.
11.1 miles.
The probability in all given conditions is 1/4.
According to the statement
Number of coin tossed = 3
Total outcomes = 8
Now, we have to find the probabilities on different conditions.
- Probability of a head on each of the last two tosses
Probability = A head on each of the last two tosses/ total outcomes
Probability = 2/8
Probability = 1/4.
- Probability of alternating tale and head
Probability = alternating tale and head / total outcomes
Probability = 2/8
Probability = 1/4.
- Probability of a no tails on each of the last two tosses
Probability = A No tails on each of the last two tosses/ total outcomes
Probability = 2/8
Probability = 1/4.
So, The probability in all given conditions is 1/4.
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Answer:
The are 5 marbles
Step-by-step explanation:
51/85 = 3/5 As a result, there are 51 red and 85 green marbles.
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Irina:
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Irina takes 7 hours to paint the room.
In 1 hour, Irina can paint 1/7 of the room.
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Paulo:
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Paulo takes 6 hours to paint the room.
In 1 hour, Paulo can paint 1/6 of the room.
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Both paint together:
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In one hour they can paint (1/7 + 1/6) of the room.
1/7 + 1/6 = 13/42
So, it takes 13/42 of the room takes 1 hour.
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Find the number of hours
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13/42 of the room = 1 hour
Whole room = 1 ÷ 13/42
Whole room = 1 x 42/13
Whole room = 3.23 hours
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Answer: They need 3.23 hours to paint the room.
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12b is the answer to the question
