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Contact [7]
3 years ago
5

8(За + 6) = 9(2а — 4)

Mathematics
1 answer:
Ede4ka [16]3 years ago
3 0

Answer: <em>A = -14</em>

Step-by-step explanation:

<em>First, remove the parentheses</em>

<em>8(3a+6) =9(2a-4)</em>

<u><em>24a+48=9(2a-4)</em></u>

<em>Move the terms</em>

<em>24a+48=18a-36</em>

<u><em>24a-18a+48=-36</em></u>

<em>Collect the like terms (Calculate)</em>

<em>24a-18a=-36-48</em>

<u><em>6a=-36-48</em></u>

<em>Divide by both sides</em>

<em>6a=-84</em>

<em>Solution: a=-14</em>

<u><em /></u>

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Which number line represents the solution to<br><br> W - 2 &lt; 8 ?
Umnica [9.8K]

Answer:

w<10

number -  A

(<) means "open circle to the left."

8 0
3 years ago
Factor the Following:<br><br>1.) 8<br>2.) -12<br>3.) -3y²<br>4.) 6x²+36x<br>5.) 7x -14x²​
Alex787 [66]

Answer:

1.) 8 = 8

2.) -12 = -12

3.) -3y² = -3y²

4.) 6x² + 36x = 6x(x + 6)

5.) 7x - 14x² = 7x(1 - 2x)

~

3 0
3 years ago
in a triangle two sides of the same length the ratio of each of these sides to the third side is 5:3 if the perimeter of the tri
AveGali [126]

Answer:

Step-by-step explanation:

Perimeter of a triangle equals side 1 plus side 2 plus side 2

           P = s1 + s2 + s3                 side 1 = side 2 =  x

                                                     x/side 3 = 5 / 3

                                                     x  = (5/3) side 3

                                                     x (3/5)  = side 3

                                                 

                                                     perimeter = 65    slove for x

          65  = x + x + 3x/5

         325  = 5x + 5x + 3x

         325  = 13X

          25   = x    equal side 1 and side 2  

          side 3 = 25(3/5)  = 15

3 0
3 years ago
A knife is three times the cost of a spoon. 9 spoons and 12 knifes cost ?82.80 workout the cost of 1 knife.
tankabanditka [31]

Let S = spoon

Let K = knife


1 knife is thee times the cost of a spoon, so it would be 3S

Now you have 9S + 12K = 82.80

We can replace the K with 3S:

9S +12(3S) = 82.80

Simplify the left side:

9S + 36S = 82.80

Add:

45S = 82.80

Divide both sides by 45"

S = 82.80 / 45

S = 1.84

One spoon cost $1.84


We know one knife cost 3 times as much, so multiply the cost of a spoon by 3:

Knife = 1.84 x 3 = $5.52

7 0
3 years ago
Read 2 more answers
Someone help ASAP will give brainliest
bogdanovich [222]
The 3rd answer, is correct.
3 0
3 years ago
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