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Varvara68 [4.7K]
3 years ago
12

How many ways are there to arrange 7 distinct red and 5 distinct blue balls in a row such that no two blue balls are next?

Mathematics
2 answers:
dybincka [34]3 years ago
7 0
18 different ways you could place them<span />
sergeinik [125]3 years ago
3 0

Answer:

There probably could be 18 ways.

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1 5/6 −(x− 7/12 )+2 1/12 =0.9
iren [92.7K]
The answer is x=3.6 or 3 3/5.

First we convert the decimal answer to a fraction; 0.9 is read as "nine tenths," so the corresponding fraction is 9/10:

1 5/6 - (x - 7/12) + 2 1/12 = 9/10

Now we find a common denominator.  The first thing that 6, 12 and 10 will all divide into is 60:

1 50/60 - (x - 35/60) + 2 5/60 = 54/60

Distributing the negative, we have:
1 50/60 - x + 35/60 + 2 5/60 = 54/60

Combining like terms, we have:
-x + 4 30/60 = 54/60

Subtracting 4 30/60 from each side, we have:
-x + 4 30/60 - 4 30/60 = 54/60 - 4 30/60
-x = -3 36/60

Divide both sides by -1:
-x/-1 = (-3 36/60)/-1
x = 3 36/60 = 3 3/5 = 3.6
5 0
3 years ago
3 squares = 27 feet<br> How many feet represent 1 square?
Wittaler [7]

Answer:9

Step-by-step explanation:

27 divided by 3

3 0
2 years ago
Read 2 more answers
What is the quotient of 99 divided by 9081
Artist 52 [7]

Hello from MrBillDoesMath!

Answer:

11/ 1009   (.0109 approximately)

Discussion:

99/9081 =                               => as 9081 = 9 * 1009 = 3 * 3 * 1009

99/ ( 3 * 3 * 1009)  =

(99/(3*3)) * (1/1009) =

(99/9)  * (1/1009)  =

11/ 1009 =

.0109 approximately


Thank you,

MrB

6 0
3 years ago
Read 2 more answers
Armando got a job selling bags of peanuts at the local art festival. He is paid a fixed amount of $320 per
skelet666 [1.2K]

0.67n + 320

=(0.67 * 430) + 320

= 288.1 + 320

= $608.1

0.67n + 320 = 728.70

0.67n = 728.70 - 320

0.67n = 408.7

n = 408.7 / 0.67

n = 610 Bags of peanuts

6 0
3 years ago
If 6/9 is equal to 10/R, what is R?
sladkih [1.3K]

Answer:

r = 15

Step-by-step explanation:

I don't really have an explanation, I'm just good at quick math,

I'm sorry if you wanted an explanation, I would explain but I am really bad at explaining math.

5 0
3 years ago
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