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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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A fraction with a numerator of 1 is called a _ fraction
Oksi-84 [34.3K]

Answer:

Unit fraction

Step-by-step explanation:

A unit fraction means 1 unit is the value of the numerator. This means 1 is in the numerator.

8 0
3 years ago
Read 2 more answers
Idk wat to do.....<br>........​
oksano4ka [1.4K]

Answer:

Mean : 95

Median : 85

Mode : 90

Part B : Impossible

Step-by-step explanation:

We can make an equation to find the mean using the first 5 history test scores.

85=\frac{80+75+90+75+95+n}{6} \\ \\ 85=\frac{415+n}{6} \\ \\ 510=415+n \\ \\ n=95

So a 95 would be needed to have a mean of 85.

Next, the median.

First, we sort the first 5 history scores from least to greatest.

We get 75, 75, 80, 90, 95.

Since, 80 is the middle value, it will be used in the calculation of the median.

We can make an equation with this.

82.5=\frac{80+n}{2} \\ \\ 165=80+n \\ \\ n=85

So a score a 85 would be needed to have a median of 82.5

Thirdly, the mode.

Since 90 is already in the set once, we can just have Maliah score another 90 to make 90 the mode (with the exception of 75 of course).

Finally, Part B.

We can use the equation we had for the first mean calculation but change 85 to 90.

90=\frac{80+75+90+75+95+n}{6} \\ \\ 90=\frac{415+n}{6} \\ \\ 540=415+n \\ \\ n=125

So Maliah would need a score of 125 to make her mean score 90, but since the range is only from 0-100, it is impossible.

8 0
3 years ago
ALGEBRA Find mZA in ABC if mZB = 38º and mZC = 38º.
ValentinkaMS [17]

Answer:

d

Step-by-step explanation:

dddddddddddddddddddddddddddd

6 0
3 years ago
Lauren in making 15 liters of mimosas for a brunch banquet. Orange juice costs her $1.50 per liter and champagne costs her $12 p
PSYCHO15rus [73]

Answer:

  • 10 liters of orange juice
  • 5 liters of champagne

Step-by-step explanation:

Let c represent the number of liters of champagne Lauren uses. Then (15-c) will be the number of liters of orange juice. The total cost of the mix will be ...

  12c +1.50(15-c) = 5.00(15)

  10.5c = 52.50 . . . . . subtract 22.50, simplify

  52.50/10.5 = c = 5 . . . . divide by the coefficient of c

Then the amount of orange juice is ...

  15 -c = 15 -5 = 10 . . . . liters

Lauren should use 5 liters of champagne and 10 liters of orange juice.

4 0
3 years ago
What is the measure of the radius of the cone in the diagram below?
Anastasy [175]

Answer:

4cm

Step-by-step explanation:

the diameter is labelled as 8cm

radius is half of the diameter

3 0
2 years ago
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