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emmainna [20.7K]
3 years ago
14

A bag contains 5 red marbles, 8 white marbles, and 7 blue marbles. You draw 4 marbles out at random, without replacement. What i

s the probability that all the marbles are red?
Mathematics
1 answer:
lozanna [386]3 years ago
5 0

Answer: 8/7752

Step-by-step explanation:

Since we are told that the bag contains 5 red marbles, 8 white marbles, and 7 blue marbles. The total number fo marbles would be:

= 5 + 8 + 7

= 20 marbles

If 4 marbles out at random, without replacement, the probability that all the marbles are red would be:

= 5/20 × 4/19 × 3/18 × 2/17

= 1/4 × 4/19 × 1/6 × 2/17

= 8/7752

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On January 1st, the high temperature was 81 °F in kona, hawaii. the low temperatures was 29 °F in Barrow, Alaska. What was the d
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3 years ago
The product of 8 and the sum of 4 and a number is 112. What is the number?
Zigmanuir [339]

Answer:

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Step-by-step explanation:

Let's start by reading the problem since it maybe is a bit confusing at first.

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Now we know that it starts with 8 multiplied by another number. We do not know that number yet, so let's put 8 * () and fill in the parentheses later.

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