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2 years ago

A bag contains 5 blue marbles, 2 black marbles, and 3 red marbles. A marble is randomly drawn from the bag.

Mathematics

2 answers:

svetoff [14.1K]2 years ago

7 0

Answer:

The probability of not drawing a black marble is 8/10 and the probability of drawing a red marble is 3/10.

Step-by-step explanation:

There are 10 marbles altogether, and 8 of them are not black marbles, and only 3 of them are red.

Delvig [45]2 years ago

4 0

Since you are not allowed to draw a black marble, then you have only 7 ways to draw either a blue or a red marble. The sum of all marbles is 10. So the probability of not drawing a black marble is 7/10 and the probability of drawing a red marble is 2/10 or 1/5.

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2 years ago

9/11 - 1/2 in it's simplest form

Murrr4er [49]

Answer:

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Step-by-step explanation:

Step 1: Define/explain.

To subtract fractions with different denominators, you must first find the least common denominator (LCM).

You can do this by listing the multiples of each denominator.

Step 2: Solve.

11: 11, 22, 33, 44, 55, 66, 77, 88, 99, 110

2: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22

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Now, we change the fractions to where they both have denominators of 22.

**REMEMBER: WHICHEVER NUMBER YOU MULTIPLY THE DENOMINATOR BY, YOU MULTIPLY IT BY THE NUMERATOR AS WELL!!**

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3 years ago