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Pie
3 years ago
15

Mike had two hundred fifty- eight dollars to spend on nine books. After buying them he had fifteen dollars. How much did each bo

ok cost?​
Mathematics
1 answer:
vaieri [72.5K]3 years ago
4 0

Answer:

$27 per book

Step-by-step explanation:

258 - 9(books) = 15

258-15 = 243

243 / 9=27

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In a survey of 300 house wires. It was discovered
ruslelena [56]

Answer:

46 housewives read all three magazines.

Step-by-step explanation:

Given:

        n(A) = 150

        n(B) = 200

        n(C) = 156

        n(A∩B) = 48

        n(B∩C) = 60

        n(A∩C) = 52

         n(A∪B∪C) = 300

so we know the relation as:

  n(A∪B∪C) = n(A) + n(B) + n(C) - n(A∩B) - n(B∩C) - n(A∩C) + n(A∩B∩C)

∴ n(A∩B∩C) = n(A) + n(B) + n(C) - n(A∩B) - n(B∩C) - n(A∩C)  - n(A∪B∪C)

                    = 150 + 200+ 156 - 48 - 60 - 52 - 300

                   = 46

Hence the number of housewives that had read all three magazine is 46.

8 0
3 years ago
if you practice a musical instrument each day for 2/3 of an hour how many hours of practice would you get in each week?
RideAnS [48]
In order to find the answer of the given problem above, we need to make the solution below:
Given: 2/3 of an hour = practice each day
           2/3 of an hour is equivalent to 40 minutes
And per week, there are 7 days. So we will multiply 40 minutes by 7, and the result is 280 minutes. Since there are 60 minutes in an hour, we divide 280 by 60 and we get 4.67 hours. Therefore, each week, you would get 4.67 hours of practice on playing a  musical instrument.
3 0
3 years ago
he table represents a linear function. A two column table with six rows. The first column, x, has the entries, negative 2, negat
zmey [24]

Answer:

3

Step-by-step explanation:

Use the formula:

The slope equation using the equation of line is given as, y = mx + b, here, m is the slope and b is the y-intercept.

choose any 2 rows and plot them into the formula.

(-2)-1/(-2)-(-1) = 3

6 0
2 years ago
Tyler wants to buy some cherries at the farmer’s market. He has $10 and cherries cost $4 per pound. How many pounds of cherries
bearhunter [10]

Answer:

2-and-a-half pounds

10 / 4 = 2.5

5 0
2 years ago
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List three ways geography influences what kinds of work people do.
cluponka [151]
Where there are mountains there are sherpas, where there are oceans there are fisherman, and where there are caves there are explorers 
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3 years ago
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