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worty [1.4K]
4 years ago
15

Kelsey buys a 25-card pack. the card pack includes 5 rare cards and 20 regular game cards. what is the ratio of rare cards to re

gular cards in the deck?
Mathematics
1 answer:
Katyanochek1 [597]4 years ago
7 0
1 to 5 ratio if 5 are rare and 20 are not. so for every 1 rare there will be 5 common
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Is it possible for a simple, connected graph that has n vertices all of different degrees? Explain why or why not.
ryzh [129]

Answer:

It isn't possible.

Step-by-step explanation:

Let G be a graph with n vertices. There are n possible degrees: 0,1,...,n-1.

Observe that a graph can not contain a vertice with degree n-1 and a vertice with degree 0 because if one of the vertices has degree n-1 means that this vertice is adjacent to all others vertices, then the other vertices has at least degree 1.

Then there are n vertices and n-1 possible degrees. By the pigeon principle there are two vertices that have the same degree.

8 0
3 years ago
Help me with this math
topjm [15]

for part A: your time will be 0.714286 hours which equal

42 minutes and 51 seconds.

but for part B: your time would be 1.6 repeat to sum it up you would get a hour and 40 minutes to get home.

i hope this helps you :)

6 0
4 years ago
A skatepark has an area of 6000ft2, a length of 60 ft and an unknown width, find the width of the skatepark
aliya0001 [1]

Answer:

The width of the skatepark is 100ft^2.

Step-by-step explanation:

Total area= 6000ft^2

The Formula for area= L x W (depends on the shape, but in this case that is the formula)

Length= 60 ft

Width = 100

60 x 100= 6000ft^2

Hope this helped!

4 0
3 years ago
Help me pls i cant solve this
Agata [3.3K]

divide both sides by 0.8

6.4/0.8=0.8m/0.8


m=8



6 0
4 years ago
Read 2 more answers
A patient requires an IV of D5W, a 5% solution of dextrose (sugar) in water. To the nearest milliliter, how much D20W, a 20% sol
solmaris [256]

Answer:

  A=300ml

Step-by-step explanation:

From the question we are told that

5% solution of dextrose sugar in water

20% solution of dextrose in

100 milliliters of distilled water water

Generally in mathematically solving we call A the amount of D20W added

Since 20% of dextrose is needed

       20 \%*100=20milliter

Total quantity after addition (100+x)

for DW5% total solution is

          5\% (100+A)= \frac{5}{100}(100+A)

          5\% (100+A) =5+0.05A

Mathematically

           5+0.05A =20

           5+0.05A =20-5

           A=\frac{15}{0.05}

           A=300ml

Therefore the required quantity A=300ml

7 0
3 years ago
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