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Harrizon [31]
2 years ago
13

5 + 8n = 7(-7 + 4n) -6

Mathematics
1 answer:
Luba_88 [7]2 years ago
6 0

Answer:

n = 3

Step-by-step explanation:

Given

5 + 8n = 7(- 7 + 4n) - 6 ← distribute parenthesis on right side

5 + 8n = - 49 + 28n - 6 ( subtract 28n from both sides )

5 - 20n = - 55 ( subtract 5 from both sides )

- 20n = - 60 ( divide both sides by - 20 )

n = \frac{-60}{-20} = 3

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Find the factors prime or composite 21
velikii [3]

Answer:

21 is a composite number

Step-by-step explanation:

It is a composite because multiple numbers can go in it like 3 and 7 so it is a composite number

7 0
2 years ago
Find the 94th term of the arithmetie sequence 25, 31, 37,...
Shkiper50 [21]

Answer:

583

Step-by-step explanation:

add 6 per every number till you get to the 94th term

7 0
3 years ago
Find the area. If applicable, leave the answer in simplest radical form. Helpp​
inna [77]

Answer:

The area is 28\ m^{2}

Step-by-step explanation:

I assume that the figure is a square

The area of a square is equal to

A=b^{2}

where

b is the length side of the square

In this problem we have

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substitute in the formula

A=(2\sqrt{7})^{2}

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6 0
3 years ago
Divide 85 into the ratio of 2:3:5
alukav5142 [94]
The actual amount that needs to be divided = 85
The ratio in which the amount needs to be divided = 2:3:5
Let us assume the common ratio to be = x
Then
2x + 3x + 5x = 85
10x = 85
x = 85/10
  = 8.5
Then
The ratio in which the number 85 will be divided = 2 * 8.5:3 * 8.5:5 * 8.5
                                                                             = 17:25.5:42.5
So from the above deduction we can see that the number 85 can be divided in the ratio 17:25.5:42.5
4 0
3 years ago
Solve the equation <br> 1/6(12z-18)=2z-3
Romashka-Z-Leto [24]
1/6(12z-18)=2z-3

12/6z-18/6 =2z-3

2z-3=2z-3

 there are infinite solutions for this equation or all real numbers
8 0
3 years ago
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