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svp [43]
3 years ago
5

4a 5(a-3)=2 3a what is the answer

Mathematics
2 answers:
Vitek1552 [10]3 years ago
7 0
4a + 5(a - 3) = 2 + 3a

4a + 5*a - 5*3 = 2 + 3a

4a + 5a - 15 = 2 + 3a

9a - 15 = 2 + 3a

9a - 3a = 2 + 15

6a = 17            

Divide both sides by 6

6a/6 = 17/6

a = 17/6

Hope this helps.
alexdok [17]3 years ago
4 0
4a + 5a - 15 = 2 + 3a
6a = 17
a = 17/6
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The porch is 17 ft by 17 ft

Step-by-step explanation:

The perimeter of a square is

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P = 4( 3x+2)

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14x-2 = 12x+8

Subtract 12x from each side

14x-2 -12x = 12x+8-12x

2x -2 = 8

Add 2 to each side

2x-2 +2 = 8+2

2x= 10

Divide by 2

2x/2 = 10/2

x = 5

The side  is 3x+2

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                  15+2

                   17

The porch is 17 ft by 17 ft

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3 years ago
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3 years ago
How many sixes are equal to double 27?
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Step-by-step explanation:

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2 years ago
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The seventh grade class is raising money to have a class trip at the end of the year. They began the year with $1500. They now h
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Answer:

The percent of the increase for the money the class raised is 10 %

Step-by-step explanation:

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5 0
3 years ago
What is 3a+2c=26 solve for a and c
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Simplifying

3a + 2b + c = 26

Solving

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Move all terms containing a to the left, all other terms to the right.

Add '-2b' to each side of the equation.

3a + 2b + -2b + c = 26 + -2b

Combine like terms: 2b + -2b = 0

3a + 0 + c = 26 + -2b

3a + c = 26 + -2b

Add '-1c' to each side of the equation.

3a + c + -1c = 26 + -2b + -1c

Combine like terms: c + -1c = 0

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2 years ago
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