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Keith_Richards [23]
3 years ago
9

5a - {3b - 5[a - (b + -4a)]}

Mathematics
1 answer:
bulgar [2K]3 years ago
5 0
Interesting problem. When computers first came out (when dinosaurs ruled the planet), we had to deal with problems that were many brackets deep.  So  this has practical applications.

Start at the very right and keep on removing brackets and collecting like terms.

5a - {3b - 5[a - (b - 4a)]} I just changed the sign on the right bracket.
5a - {3b - 5[a - b + 4a]}
5a - {3b - 5[5a - b]} Now deal with []. You are still on the right.
5a - {3b - 25a + 5b}
5a - {8b - 25a} Finally remove {}
5a - 8b + 25a
30a - 8b
If you can solve another like this, you are well on your way to being good in computer science.

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16+ (-26) = -10<br> 9.-16+(-4)<br> - 16+(-4)=<br> 12<br> 3-(4)
Stels [109]

Answer:

The answer is -1.

Step-by-step explanation:

It is a little messy tho. I will assume that you want 3-(4)

6 0
3 years ago
Can someone please answer this with step by step i really need help thank you
Gre4nikov [31]

Answer:

40°

I hope it will be useful.

Step-by-step explanation:

Angles on the same side of the transversal are equal.

5 0
3 years ago
Read 2 more answers
A coffee supply store waits until the orders for its special coffee blend reach 100 pounds before making up a batch. Coffee sell
Daniel [21]
Let x represent the number of pounds of $10.75/lb coffee used in the mix.
.. 10.75x +3.25(100 -x) = 5.65*100 . . . . . . total cost of coffee blend
.. x(10.75 -3.25) = 100*(5.65 -3.25) . . . . . .separate x-terms from non-x terms
.. x = 240/7.5 = 32

32 pounds of $10.75/lb coffee should be used
68 pounds of $3.25/lb coffee should be used
7 0
3 years ago
Find the value of x.
lutik1710 [3]

Answer:

#7 is x = 51

#8 is x = 9

Step-by-step explanation:

#7 walk-through

35 + 2x + 16 + 4x + 3 = 360

35 + 16 + 3 + 2x + 4x = 360

54 + 6x = 360

6x = 306

x = 51

#8 walk-through

6x + 2 = 56

6x = 54

x = 9

3 0
3 years ago
Read 2 more answers
Solve for x. Show all your steps/work. <br> 216x = 6x + 1
abruzzese [7]
216x-6x=1
210x=1
x= 1/210
x= 0.00476
5 0
2 years ago
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