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Olegator [25]
4 years ago
11

4(5n -7) =10+2 i need step by step explanation i dont get it

Mathematics
1 answer:
ser-zykov [4K]4 years ago
7 0

Answer:

n=2

Step-by-step explanation:

4(5n-7)=10+2

1) First, distribute (multiply out 4)

20n-28=10+2

2) Combine like terms (add 10 and 2)

20n-28=12

3) Isolate the variable (Add 28 to 12)

20n=40

4) Isolate the variable (Divide by 20)

n=2

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Solve for x. Show the equation you used and your work.
nasty-shy [4]
Here, You need to apply "Proportionality Theorem"
According to this theorem, the ratio of components of a leg would be equal to the ratio of corresponding components of another leg.

In mathematical form, 
AB/BD = AC/CD

Substitute their values, 
36/24 = x/18
2/3 = x/18
x = 18*3 / 2
x = 54 / 2
x = 27

In short, Your Answer would be 27

Hope this helps!
5 0
4 years ago
Which of the following is equivalent to 2^(2x+1)?
Rudiy27

Answer:

a

Step-by-step explanation:

2^2x+1

2^(2x)+2¹

2^(2x)+2

4 0
3 years ago
³d what is the anwser
lions [1.4K]

Answer:

75%

Step-by-step explanation:

48 of 64 times 100

48/64 × 100

0.75 × 100

75

So 75% of the bottle of orange juice is water

Hope this helps!!

5 0
3 years ago
At a certain company, the annual winter party is always held on the second of Friday of December. What is the latest possible da
vitfil [10]

Answer:

The latest possible date is December, 14th.

Step-by-step explanation:

Notice that the second Friday of December is n+7, where n is the date for the first Friday of December. So, the latest the first Friday, the latest the second. As the weeks have seven days, the first Friday will be between 1st and 7th of each month. So, the latest first Friday will be 7th. Therefore, the latest second Friday will be 14th.

7 0
3 years ago
7x + 3 (3x+6) = 194 what is the answer
balandron [24]

Answer:

x = 11

Step-by-step explanation:

7x + 3(3x + 6) = 194

<em>open the parenthesis</em>

7x + 3 * 3x + 3 * 6 = 194

7x + 9x + 18 = 194

<em>subtract 18 from both sides of the equation</em>

7x + 9x + 18 - 18 = 194 - 18

<em>combine like terms</em>

7x + 9x = 194 - 18

16x = 176

<em>divide both sides of the equation by 16</em>

16x/16 = 176/16

x = 176/16

x = 11

4 0
3 years ago
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