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Liono4ka [1.6K]
4 years ago
10

The school store opened on the first day of school with 35 notebooks and 15 pencils. Within 2 days it sold all of those items. O

n the first day, twice as many notebooks were sold as pencils. On the second day, for every 5 notebooks sold, 2 pencils were sold. How many notebooks and how many pencils were sold on each day
Mathematics
2 answers:
frozen [14]4 years ago
5 0
On the first day, there were ten notebooks sold and five pencils sold. On the second day, there were 25 notebooks sold and 10 pencils sold.
Igoryamba4 years ago
5 0
The first day its 10 notebooks and 5 pencils. The second day its 25 notebooks and 15 pencils.
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Vinvika [58]

Answer:

The fixed costs per day for the factory is $10,000 and marginal cost of one refrigerator for $500

Step-by-step explanation:

Let

Cost per refrigerator (marginal cost) = r

Fixed costs per day for the factory = f

Total cost = variable cost + fixed cost

Monday

25,000 = 30r + f

Tuesday

30,000 = 40r + f

Using Monday,

f = 25000 -30r

Substitute f = 25000 - 30r into Tuesday

30,000 = 40r + f

30,000 = 40r + (25,000 -30r)

30,000 = 40r + 25,000 - 30r

Collect like terms

30,000 - 25,000 = 40r - 30r

5,000 = 10r

Divide both sides by 10

r = 5,000 / 10

= 500

r = $500

Substitute r= 500 into Monday equation

f = 25,000 -30r

= 25,000 - 30(500)

= 25,000 - 15,000

= 10,000

f = $10,000

Therefore, the fixed costs per day for the factory is $10,000 and marginal cost of one refrigerator for $500

7 0
3 years ago
In the above diagram, you see a standard deck of cards. Answer each of the following questions using this deck of cards.
Novay_Z [31]

Answer:

See below.

Step-by-step explanation:

52 as there is a total of 52 in the pack.

Probability (drawing a red card) =26/52 = 1/2.

4 aces.

Probability(drawing an ace) = 4/52 = 1/13.

Probability(drawing a numbered card) = 40/52  = 10/13.

7 0
3 years ago
Write the following<br> number in scientific<br> notation.<br> 5,673,091
Studentka2010 [4]

Answer:

5.673091 x 10^6

Step-by-step explanation:

7 0
4 years ago
A librarian recorded the number of books that were checked out on each of the last 9 days,as shown below. 142, 136, 125, 148, 15
lutik1710 [3]

Mean is the sum of values divided by the count of values.

The sum of values is 1,235.

There are 9 values.

1235/9 = 137.22

4 0
3 years ago
Read 2 more answers
X=25.36+0.45(25.36)<br><br> LaTeX: x=
e-lub [12.9K]

Answer:

x=36.772  

Step-by-step explanation:

Given : Expression x=25.36+0.45(25.36)

To find : Solve the expression ?

Solution :

Step 1 - Write the expression,

x=1(25.36)+0.45(25.36)

Step 2 - Apply distributive, ab+ac=a(b+c)

Here, a=25.36, b=1, c=0.45

x=25.36(1+0.45)

Step 3 - Solve the expression,

x=25.36\times 1.45

x=36.772

Therefore, x=36.772

7 0
4 years ago
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