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Mars2501 [29]
3 years ago
7

Of the last 100 customers entering a computer shop, 25 have purchased a computer. If the relative frequency method for computing

probability is used, the probability that the next customer will purchase a computer is
Mathematics
1 answer:
Andrej [43]3 years ago
7 0

Answer: 0.25

Step-by-step explanation:

The relative frequency of the customers that buy computers is equal to the number of customers that bought a computer divided the total number of customers that entered the shop.

p = 25/100 = 0.25

If we take this as the probability, then the probability that the next customer that enters the shop buys a computer is 0.25 or 25%

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GREYUIT [131]

Step-by-step explanation:

the answer as shown in the photo

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2 years ago
A customer bought 2 small pizzas that cost $5.95 each. How much was her change from $15.00?
Lubov Fominskaja [6]

Answer:

Her change was $3.10

Step-by-step explanation:

One small pizza costs $5.95 each. 2 pizzas equal $11.90. $15.00 minus $11.90 equals $3.10.

3 0
2 years ago
There are 420 books on a bookcase with 7 shelves. Each shelf has the same number of books. How many books are on 4 shelves? 28 6
Ghella [55]
If we have 420 books for every 7 shelves and are looking for how many books are on 4 shelves, we need to set up fractional proportions.

We have 7 shelves for every 420 books, so we will have our first fraction like this:
7/420.
We also have 4 shelves for every x books, so our second fraction will be 4/x.

Set these fractions up as an equation.
7/420 = 4/x

To solve for x, we need to cross multiply the numerators of one fraction with the denominators of the other fraction.
In other words, multiply the top number of one fraction by the bottom number of the other question.

It should look like this:
7(x)
420(4)

7(x) = 7x
420(4) = 1680

Set your products up as an equation.
7x = 1680

Now to solve for x, we need to simplify.
Currently, x is being multiplied by 7.
To get x alone, divide 7x by 7.
Remember, what you do to one side of an equation, you must do to the other, so divide 1680 by 7.

7x / 7 = x
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I hope this helps!

3 0
3 years ago
60% of Herbert's movies are adventure movies. He has 18 adventure movies. How many movies does Herbert have in all?
Vera_Pavlovna [14]
Data:
x (Number of movies) = ?


\frac{60}{100} *x = 18
0,6x = 18
x =  \frac{18}{0,6}
\boxed{x = 30}

Answer:
<span>Herbert have in all ?
30 movies</span>
5 0
3 years ago
Oliver has d dimes and q quarters. He has at least $4 worth of coins altogether. Write
8_murik_8 [283]

Answer:

Step-by-step explanation:

d = dimes and q = quarters

0.10d + 0.25q > = 4 (thats greater then or equal to)

6 0
2 years ago
Read 2 more answers
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