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Sav [38]
3 years ago
12

(3a+2b-4c)+(3a+2b-4c)​

Mathematics
2 answers:
In-s [12.5K]3 years ago
8 0

6

+

4

−

8

Step-by-step explanation:

Please mark me as brain list and please like my answer and rate also

MatroZZZ [7]3 years ago
7 0

Answer:

hope this will help you more

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how many pounds of coffee worth $10 a pound should be added to 20 pounds of coffee worth $4 a pound to get a mixture worth $5 a
Solnce55 [7]

Answer:

4

Step-by-step explanation:

1. if the mass of coffee worth $10 is 'x', then its worth is 10x, and the worth of the mixture is 5(x+20);

2. using the previous item it is possible to write the next equation:

5(x+20)=4*20+10*x; ⇒ x=4.

3. the required mass is 4 pounds.

5 0
3 years ago
The photo down below will show you what I need help with.​
Irina18 [472]

Answer:

\frac{x+7}{3} (the second option)

Step-by-step explanation:

Hope this helps!

7 0
3 years ago
I need help I don’t understand and I need to show my work who would help me??
stich3 [128]

Answer: b

Step-by-step explanation:

In the last question, you wrote on a second equation "13x ...." kkk

Let's go:

We have to check each one answer in the following system:

x - 2y = 7

3x + 7y = 8

I can use the substituition method to solve this system...

x = 7 + 2y

3x + 7y = 8

3(7 + 2y) + 7y = 8

21 + 6y + 7y = 8

13y = 8 - 21

13y = -13

y = -1

x = 7 + 2.(-1)

x = 5

Finally, the correct answer is the second one (letter b).

5 0
3 years ago
Read 2 more answers
What shape is created by a cross-section of a triangular prism cut perpendicular to the bases?
Butoxors [25]

Answer:

Its a triangle .And the question says triangular

7 0
3 years ago
Which equation will help you solve this problem?
Anna35 [415]
Think about it, 64 band members split equally into 8 rows. Sounds like division, right? If we're going to split them into each row, that would be eight members for each of the eight rows. 

So the answer is that 8 members was in each row.
4 0
4 years ago
Read 2 more answers
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