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ryzh [129]
3 years ago
10

Marcus has 731 books. He puts about the same number of books on each of 9 shelves in his bookcase. About how many books are on e

ach shelf?
Mathematics
1 answer:
Pachacha [2.7K]3 years ago
6 0

Answer:

About 81

Step-by-step explanation:

If he has 731 books and 9 shelves then divide 731 by 9

731 divided by 9 roughly equals 81.22 so your answer would be 81

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Write an equivalent fraction for 10/2
Scorpion4ik [409]
10/2 is an improper fraction. So, change it to a mixed number. 10÷2=5

5 is the mixed number and is the equivalent fraction. You can also do 5/1 which is also equivalent. 
7 0
3 years ago
Mr. Shamir employs two part-time typists, Inna and Jim, for his typing needs. Inna charges $15 an hour and can type 6 pages an h
coldgirl [10]

Answer:

The minimum cost would be 480$ when Inna works for 8 hours and Jim works for 20 hours.

Step-by-step explanation:

We are given the following information in the question:

Charges for 1 hour for Inna = $15

Number of pages typed by Inna in 1 hour = 6

Charges for 1 hour for Jim = $18

Number of pages typed by Jim in 1 hour = 8

Let x be the number of hours Inna work and let y be the number of hours Jim work.

Total cost = 15x + 18y

We have to minimize this cost.

Then, we can write the following inequalities:

6x + 8y \geq 208\\x \geq 8\\y \geq 8\\

The corner points as evaluated from graph are: (8,20) and (24,8)

C(8,20) = 480$

C(24,8) = 504$

Hence, the minimum cost would be 480$ when Inna works for 8 hours and Jim works for 20 hours.

The attached image shows the graph.

3 0
3 years ago
Grant earns $5 for each magazine he sells.Write an equation in two variables showing the relationship between the number pf maga
slega [8]

Answer:

A=5m

Grant will make $60 from selling 12 magazines.

Step-by-step explanation:

Let m represent number of magazine sold and A represent amount of money earned.

We have been given that Grant earns $5 for each magazine he sells. So amount earned from m magazines would be 5 times m that is 5m dollars.

Now, we will equate total amount earned by Grant with A as:

A=5m

Therefore, our required equation would be A=5m.

To find the amount earned by Grant by selling 12 magazines, we will substitute m=12 in our equation as:

A=5(12)

A=60

Therefore, Grant will make $60 from selling 12 magazines.

3 0
3 years ago
7x+2y=-19 and -x+2y=21
Fittoniya [83]
Subtract the 2 equations

     7x+2y=-19
-    -x+2y = 21
--------------------------
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x= -1/4
7 0
3 years ago
These are the values in Min-Su’s data set.
Ber [7]
The answer is (4,5) (5,-5) (6,-4) (7,3) (8,1).
3 0
3 years ago
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