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3 years ago

A bag contains 7 red marbles, 3 blue marbles and 5 green marbles. If three marbles

Mathematics

1 answer:

worty [1.4K]3 years ago

8 0

Answer:

3.7%

Step-by-step explanation:

We know that from this situation, the probability of drawing a single green marble is 1/3. However, to find the probability of drawing 3 green marbles, we will need to do:

$P= \frac{1}{3}* \frac{1}{3}*\frac{1}{3}$

We get a probability of:

$P= \frac{1}{27}$

This converts to a percentage of:

$\frac{1}{27}= 0.037 \\ 0.037*100= 3.7%$

We get a percentage of 3.7%

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Answer:

12 times (double the times since we are doubling the minutes)

Step-by-step explanation:

2/6 = 4/x

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3 years ago

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2 years ago

Chet started to slow his eating speed down later in the evening. He was

ozzi

Answer:

The unit rate is:

1/8 turkey/per hour.

Step-by-step explanation:

As Chet was eating 1/4 of a turkey every 2 hours.

This tells us that every two hours, Chet will eat 175 1/4 of a turkey.

Unit rate basically means 'how much of something per 1 unit of something else'.

A unit rate is a rate with a denominator of 1 unit.

This means, in 1 hour, Chet will eat half of what he eats every 2 hours.

so Chet will eat $\frac{\frac{1}{4}}{2}=\frac{1}{8}$ of a turkey in 1 hour.

i.e.

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Therefore, the unit rate is:

1/8 turkey/per hour.

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2 years ago

A roof repairer works out that he will need to work with a colleage charges $20 per hour. In the end, they took 6 hours to fix t

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a) 20(x)=y

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4 years ago