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oksano4ka [1.4K]
2 years ago
9

Help pls 30 points dont know how and what this is

Mathematics
1 answer:
joja [24]2 years ago
8 0

Answer:

I think it is either D or E, probably D, but if it is E it's because the money should be on top.

Answer: D

Step-by-step explanation:

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Answer all questions, your combing like terms. Show ALL of you work! Thank you!!
Elanso [62]

Answer:

1. -12x - 9y - 6

2. -12x + 36

3. -240

4. -2

5. x = -57

6. x = -6

7. x = 48

8. x = 20

9. x = -288

10. n = 8

Step-by-step explanation:

1.

-5x - 13 + 3y - 7x - 12y + 7

-12x - 13 + 3y - 12y +  7

-12x - 6 + 3y - 12y

-12x - 6 - 9y

-12x - 9y - 6

2.

-3(4x - 12)

-3(4x) + (-3)(-12)

-12x + 36

3.

6x - 282

6(7) - 282

42 - 282

-240

4.

6x + 2(y + x)

6(-2) + 2(7 + (-2))

-12 + 2(7 - 2)

-12 + 2(5)

-12 + 10

-2

5.

x - 23 = -80

 + 23    +23

x = -57  

6.

12x = -72

/12     /12

x = -6

7.

x/4 = 12

* 4    * 4

x = 48

8.

3x + 12 = 72

    -  12  - 12

3x = 60

/3     /3

x = 20

9.

x/4 - 8 = -80

     + 8    + 8

x/4 = -72

* 4    * 4

x = -288

10.

-4(1 - 5n) - 8n = 92

-4 + (-4)(-5n) - 8n = 92

-4 + 20n - 8n = 92

-4 + 12n = 92

12n - 4 = 92

     + 4    + 4

12n = 96

/12     /12

n = 8

6 0
3 years ago
What are some equivalent fractions for the problem :<br> 9/2 ?<br><br> Thank you for your time :)
Varvara68 [4.7K]
First, if you convert the improper fraction 9/2 to a mixed number, it will be equal to 9/2.

9/2 = 4 1/2

And if you multiply the top and bottom of a fraction with an integer number, you will have a fraction that is equal to fraction you began with.

I'll use 5 for this example.

9/2 * 5/5 = 45/10
5 0
3 years ago
Three times a number plus twice another is 10, while their sum is 10, Find the numbers
Aleks [24]
3a+2b=10 \\\\ a+b=10 \\\\ \boxed{a=10-b} \\\\ 3(10-b)+2b=10 \\\\ 30-3b+b=10 \\\\ -b=10-30 \\\\ -b=-20 \\\\ \boxed{b=20} \\\\ a=10-20 \\\\ \boxed{a=-10}
5 0
3 years ago
Read the following two statements. Then, if possible, use the Law of Detachment to draw a conclusion.
jeyben [28]
<span>The hypothesis is : If Robbie wants to save money to buy a car. Conclusion : he must get a part-time job. 

Robbie already started the new job yesteday. So, that makes the hypothesis true. 

So, the conclusion would be : Robbie will save money to buy a car/ Robbie will buy a car.</span>
8 0
2 years ago
Read 2 more answers
Dan made $5000 in taxable income last year.
storchak [24]

well, we know is 10% for the first 7500, but Dan only made 5000 of taxable income, so he's in that range of 0 - 7500, so he only gets to pay 10% of 5000.

\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{10\% of 5000}}{\left( \cfrac{10}{100} \right)5000}\implies 500

8 0
2 years ago
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