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Alex73 [517]
2 years ago
12

Pls help ASAP REALLY NEED IT SHOW WORK!

Mathematics
1 answer:
pychu [463]2 years ago
7 0

Answer:

Image 1 (problem 3): infinitely many solutions

Image 2 (problem 1): one solution

Image 3 (problem 2): no solution

Step-by-step explanation:

Image 1 (problem 3):

2x + x + 9 = 8x - 5x + 9

Combine like terms on the left.

3x + 9 = 8x - 5x + 9

Combine like terms on the right

3x + 9 = 3x + 9

Since the equations are equal, the answer to this is infinitely many solutions.

Image 2 (problem 1):

2(4x + 3) = 12x + 2 * 4x + 4

Distribute the two inside the parenthesis on the left.

8x + 6 = 12x + 2 * 4x + 4

Multiply 2 and 4x.

8x + 6 = 12x + 8x + 4

Combine like terms on the right.

8x + 6 = 20x + 4

Subtract 20x from both sides.

-12x + 6 = 4

Subtract 6 from both sides.

-12x = -2

Divide both sides by -12.

x = 1/6

Since x comes out to a specific value, the answer is one solution.

Image 3 (problem 2):

54x + 1906x - 64 = 49(40x + 65)

Combine like terms on the left.

1960x - 64 = 49(40x + 65)

Distribute the 49 into the parenthesis on the right.

1960x - 64 = 1960x + 3185

This equation has no solution as you cannot subtract 1960x from both sides as that would eliminate the variable and since you cannot do that, you cannot progress in solving it.

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Simplify: (–7) • (8) – (4) • (–2) A. 58 B.16 C.–30 D.–48
jeka94
D. -48
Put it into your calculator exactly how it is shown up above and you will get the correct answer. Your calculator automatically knows the order of operations.
4 0
3 years ago
Find the sum of 12a + 7b, −6a − 9, and 14a − 12b.
Ivan
The answer is:  [A]:  " 20a − 5b − 9 " .
______________________________________
Explanation:
_______________________________________________
  (12a <span>+ 7b) + (−6a − 9) + (14a − 12b) =
 
   12a </span><span>+ 7b  +  1(−6a − 9) + 1(14a − 12b) =
</span>    
   12a + 7b + (1*-6a) + (1*-9) + (1*14a) + (1* -12b) =
      
    12a + 7b − 6a − 9 + 14a − 12b =  ?

Combine the "like terms:

12a − 6a  + 14a = 20a ; 

7b − 12b =  - 5b ;

and then we have "-9" ;
_____________________________________________________
So, write as:   " 20a − 5b − 9 " ;  which is:  Answer choice:  [A].
______________________________________________________
8 0
3 years ago
Read 2 more answers
How much less would a 23-year-old female pay for a $25,000 policy of 20 year life insurance (@ $2.90 per $1000) than straight li
mojhsa [17]

<u>Answer</u>:

The female would pay  $322.00 less for a policy of $25,000

<u>Step-by-step explanation:</u>

Since we have given that

Amount for policy = $25000

If she opt for 20 year life insurance at $2.90 per $1000.

so, her amount of premium becomes

25000\times \frac{2.9}{1000}

=$72.50

If she opt for straight life insurance at $15.78 per $1000,

Then, her amount of premium becomes

25000 \times \frac{15.78}{1000}

= $394.50

Difference between them is given by

$394.50-$72.5 = $322.00

5 0
4 years ago
Read 2 more answers
Please select the best answer and click submit Solve kx-4=9 for x
shepuryov [24]

Answer:

Option B. x = \frac{13}{k}.

Step-by-step explanation:

The given equation is kx - 4 = 9

We will add 4 on both the sides of the equation

kx - 4 +4 = 9 +4

kx = 13

Now we will divide by k on both the sides of the equation

\frac{1}{k}(13x) = \frac{1}{k}13

x = \frac{13}{k}

Therefore Option B x = 13/k is the right answer.

6 0
3 years ago
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4 times what number gives you 24
VashaNatasha [74]
6x4 = 24
Therefore, 24 is your answer.

8 0
3 years ago
Read 2 more answers
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