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Anastasy [175]
3 years ago
13

What is 21/4 equivalent to

Mathematics
2 answers:
Likurg_2 [28]3 years ago
6 0
\frac{21}{4} = \frac{42}{8} = \frac{63}{12} = \frac{84}{16} ...
Bess [88]3 years ago
6 0
5 1/4 because when you divide 21 by 4 you get 5 and a remainder of 1. That one turns into a fraction and is 1/4. So, the answer is 5 1/4.

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Estimate how many 12-inch rulers will be about the same length as a sheet of paper.
Pani-rosa [81]
One or maybe a little less
6 0
3 years ago
Read 2 more answers
A rectangle has a length that is 8 less than its width, w. The perimeter is 52. Which equation can be used to determine its widt
ankoles [38]
52= 2(w-8) + 2x
X is the unknown length because the question is only telling us one side of the rectangle
8 0
3 years ago
Suppose that a monopolist
daser333 [38]

Answer:

The monopolist's net profit function would be:

N(y)=198\,y\,-\,2.5\,y^2

Step-by-step explanation:

Recall that perfect price discrimination means that the monopolist would be able to get the maximum price that consumers are willing to pay for his products.

Therefore, if the demand curve is given by the function:

P(y)=200-2y

P stands for the price the consumers are willing to pay for the commodity and "y" stands for the quantity of units demanded at that price.

Then, the total income function (I) for the monopolist would be the product of the price the customers are willing to pay (that is function P) times the number of units that are sold at that price (y):

I(y)=y*P(y)\\I(y)=y\,(200-2y)\\I(y)= 200y-2y^2

Therefore, the net profit (N) for the monopolist would be the difference between the Income and Cost functions (Income minus Cost):

N(y)=I(y)-C(y)\\N(y)=(200\,y-2y^2)-(2y+0.5y^2)\\N(y)=198\,y\,-\,2.5\,y^2

5 0
3 years ago
Two mechanics worked on a car. The first mechanic charged $65 per hour, and the second mechanic charged $90 per hour. The mechan
Katena32 [7]

Answer:

First mechanic worked 20 hours and second mechanic worked 5 hours

Step-by-step explanation:

Let the number of hours the first mechanic worked = a

Let the number of hours the second mechanic worked = b

Therefore, we can write 2 equations and then solve them simultaneously:

a+b=25

65a+90b=1750

Rearranging the first equation: a=25-b

and substituting into the second equation to find b:

65(25-b)+90b=1750

1625-65b+90b=1750\\
25b=125\\
b=5

Now sub b=5 into the first equation to find a

a+5=25\\
a=20

Therefore, first mechanic (a) worked 20 hours and second mechanic (b) worked 5 hours

4 0
2 years ago
Two rectangles are similar. The ratio of their corresponding sides is 1:4.
larisa [96]

ratio of perimeter is the same as ratio of sides so perimeter would be 1:4

since area is in square units you need to square the ratio (1:4)^2 which is 1:16

7 0
3 years ago
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