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valentina_108 [34]
2 years ago
12

A box contains 9 plain pencils and 1 pen. A second box contains 5 color pencils and 5 crayons. One Iter from each box is chosen

at random. What is the
probability that a plain pencil from the first box and a color pencil from the second box are selected?
Write your answer as a fraction in simplest form.
0
DO
X
х
?
Mathematics
1 answer:
san4es73 [151]2 years ago
5 0

Answer:

9/2 or if that doesn't work try 4 1/2

Step-by-step explanation:

The probably of getting a plain pencil from the first box is 9/10. The probability of getting a color pencil from the second box is 5/10. If you multiply those you get 9/2 or 4 1/2.

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I got disconnected from my tutor, can't reconnect. need an explanation ​
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The absolute value function |<em>x</em>| always returns a non-negative number. It takes any number <em>x</em> and returns <em>x</em> if it's already non-negative, or -<em>x</em> if it is negative in order to make it positive.

|x|=\begin{cases}x&\text{for }x\ge0\\-x&\text{for }x

For the equation

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rearrange terms to get

|2<em>x</em> - 5| = 17/4

Now,

• if 2<em>x</em> - 5 ≥ 0, then |2<em>x</em> - 5| = 2<em>x</em> - 5. Then

2<em>x</em> - 5 = 17/4

• and if instead 2<em>x</em> - 5 < 0, then |2<em>x</em> - 5| = -(2<em>x</em> - 5), so that

-(2<em>x</em> - 5) = 17/4, or

2<em>x</em> - 5 = -17/4

In the first case,

2<em>x</em> - 5 = 17/4

2<em>x</em> = 17/4 + 5 = 37/4

<em>x</em> = 37/8

In the second case,

2<em>x</em> - 5 = -17/4

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Step-by-step explanation:

The question is missing, i guess you want to know the number of different rings that the jewelry has:

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Now, the total number of possible combinations is equal to the product of the number of options for each selection, this is:

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