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Dmitriy789 [7]
3 years ago
15

John runs a computer software store. Yesterday he counted 127 people who walked by his store, 58 of whom came into the store. Of

the 58, only 25 bought something in the store. Estimate the probability that a person who walks by the store will enter the store (put your answer as a fraction).
Mathematics
1 answer:
Delicious77 [7]3 years ago
3 0
The answer is 3/4. All you need to do is make proportion and simplify! Hope it helps! 
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A coach purchases 47 hats for his players and their families at a total cost of $302. The cost of a small hat is $5.50. A medium
frosja888 [35]

Answer:

The answer is below

Step-by-step explanation:

Let x represent the number of small hat purchased, y represent the number of medium hat purchased and z represent the number of large hat purchased.

Since a total of 47 hats where purchased,  hence:

x + y + z = 47    (1)

Also, he spent a total of $302, hence:

5.5x + 6y + 7z = 302     (2)

He purchases three times as many medium hats as small hats, hence:

y = 3x

-x + 3y = 0    (3)

Represent equations 1, 2 and 3 in matrix form gives:

\left[\begin{array}{ccc}1&1&1\\5.5&6&7\\-3&1&0\end{array}\right] \left[\begin{array}{c}x\\y\\z\end{array}\right] = \left[\begin{array}{c}47\\302\\0\end{array}\right] \\\\\\\\ \left[\begin{array}{c}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}1&1&1\\5.5&6&7\\-3&1&0\end{array}\right] ^{-1} \left[\begin{array}{c}47\\302\\0\end{array}\right] \\\\\\ \left[\begin{array}{c}x\\y\\z\end{array}\right] = \left[\begin{array}{c}6\\18\\23\end{array}\right]

Therefore he purchases 6 small hats, 18 medium hats and 23 large hats

5 0
3 years ago
Arrange the events in Polish history in chronological order using the numbers 1-6.
Basile [38]

Answer:

3

5

1

2

4

6

Yan po para sa akin.

4 0
2 years ago
Read 2 more answers
Given the exponential growth equation y = 50(1.6)^x what is the initial value?
german

Answer:

50 is the initial value

Step-by-step explanation:

The equation is of the form

y = ab^x  where a is the initial value and b is the growth/decay value

 b>1 is growth and b<1 means decay

   y = 50(1.6)^x  

50 is the initial value and 1.6 means growth since it is greater than 1

1.6 -1 = .6 so it has a 60% growth rate        

8 0
3 years ago
What are the measurements for angles 1-7?
kompoz [17]
1. 51
2. 34
3. 95
4. 38
5. 47
6. 74
7. 59

hope this helps!!
4 0
2 years ago
3. Write 13 tens as hundreds<br>and tens.<br>I hundreds 3 tens​
beks73 [17]

Answer:

1 ten and 3 ones

Step-by-step explanation:

ten + three is 13. Hence, one ten and three ones.

5 0
3 years ago
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