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GrogVix [38]
3 years ago
12

You pick 5 digits (0-9) at random without replacement, and write them in the order picked. What is the probability that you have

written the first 5 digits of your phone number? Assume there are no repeats of digits in your phone number
Mathematics
1 answer:
Tanzania [10]3 years ago
4 0

Answer:

Probability is : 1/30240= 0.000033068

Step-by-step explanation:

You pick 5 digits (0-9) at random without replacement, and write them in the order picked.

The probability that you have written the first 5 digits of your phone number is -

As there are no repeats, the choice to choose from decreases at each step making it 10,9,8,7,6.

(1/10)(1/9)(1/8)(1/7)(1/6)=1/30240= 0.000033068

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Solve either equation for either variable. Since the second one has y on its own, the easiest choice is to solve that for y.

-5x + y = 13   ⇒   y = 5x + 13

Now substitute this into the other equation to eliminate y and rewrite it entirely in terms of x :

-3x + 3y = 3   ⇒   -3x + 3 (5x + 13) = 3

Simplify and solve for x :

-3x + 15x + 39 = 3

12x = -36

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Substitute this into either original equation to solve for y. Plugging x = -3 into the first equation would give

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3y = -6

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2 years ago
What measurement is equal to 20 liters in milliliters?
kakasveta [241]
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5 0
3 years ago
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Last week, the price of apples at a grocery store was $1.60 per pound. This week, apples at the same grocery store are on sale a
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Answer:

$6.48

Step-by-step explanation:

First you divide do the $1.60 and the 10% discount which will bring you to $1.44 and then you times $1.44 and 4 1/2 to get $6.48.

4 0
3 years ago
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If you have $10, and you money doubles every year, how much money will you have in 10 years?
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Answer:

Year 1: 10

Year 2: 20

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3 years ago
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What is the equation of the line that passes through (4, -1) and (-2, 3)?
inessss [21]
(4,-1),(-2,3)
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y = mx + b
slope(m) = -2/3
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8 0
3 years ago
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