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Mariana [72]
3 years ago
5

(n + 3) ÷ 5 = 3? HELP

Mathematics
2 answers:
timurjin [86]3 years ago
7 0

Answer:

12/5

Step-by-step explanation: 12/5 + 3 ÷ 5 = 3

boyakko [2]3 years ago
3 0

Answer:

n = 12

Step-by-step explanation:

Rewrite it as \frac{(n+3)}{5} = 3

Multiply both sides by 5

(n+3) = 15

You can drop the parenthesis now.

n + 3 = 15

n = 12

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is picking out some movies to rent, and he has narrowed down his selections to 5 documentaries, 7 comedies, 4 mysteries, and 5 h
pogonyaev

Answer: 91

Step-by-step explanation:

Given : The number of documentaries = 5

The number of comedies = 7

The number of mysteries = 4

The number of horror films =5

The total number of movies other than comedy = 14

Now, the number of possible combinations of 9 movies can he rent if he wants all 7 comedies is given by :-

^7C_7\times^{14}C_2\\\\\dfrac{7!}{7!(7-7)!}\times\dfrac{14!}{2!(14-2)!}\\\\=(1)\times\dfrac{14\times13}{2}\\\\=91

Therefore, the number of possible combinations of 9 movies can he rent if he wants all 7 comedies is 91 .

5 0
3 years ago
Solve the equation b - 7 - 6 = 15 + 5b
hoa [83]

Answer:

b = -7

Step-by-step explanation:

b - 7 - 6 = 15 + 5b

b - 13 = 15 + 5b

4b = -28

b = -7

8 0
3 years ago
Find the Perimeter of this shape. Can someone explain to me how to find the perimeter.
Agata [3.3K]
The little lines in each side show that the sides are the same length but you also need to find the length of the smaller side which isn’t the same. For this imagine that the shape is split into a square and a triangle and you need to find the long side of the triangle using Pythagoras
a^2 + b^2 = c^2
20^2 + 20^2 = 800
Square root of 800 = 28.3
Then do 28.3-20=8.3
So I think the answer is 20+20+20+20+20+8.3=108.3 cm
3 0
3 years ago
James earned a total of $900 this week. this total was $20 less than four times the amount he earned last week. how much money d
Vladimir [108]
<span>4x – 20 = 900
4x = 900+20
4x = 920
x = 920/4
x = 230
he earned $230
                                   </span>
7 0
3 years ago
Which one is incorrect?
drek231 [11]
All of the answers here
7 0
3 years ago
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