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svetoff [14.1K]
3 years ago
5

Please help meeeeeeeee!!!!!!!!​

Mathematics
2 answers:
icang [17]3 years ago
5 0

Answer:

MAG ANSWER KA MAG ISA!!!!!!

MArishka [77]3 years ago
3 0
Wing stop ————————————————-
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Solve the system
Helga [31]
The answer is actually choice A

---------------------------------------------------------
---------------------------------------------------------

If we add up the equations straight down we will have 0a+2b = 6

Note how adding the 'a' terms gives us 3a + (-3a) = 3a-3a = 0a. The 0a term is really 0 since 0 times anything is 0. So the 'a' terms will go away

The equation 0a+2b = 6 turns into 0+2b = 6 and that simplifies to 2b = 6

To isolate b, we divide both sides by 2

2b = 6
2b/2 = 6/2
b = 3

We can stop here since only one answer choice has b = 3, which is choice A. However, let's keep going to find the value of 'a'

Plug b = 3 into any equation with 'a' and 'b', then solve for 'a'

3a+4b = 9
3a+4*3 = 9
3a+12 = 9
3a+12-12 = 9-12
3a = -3
3a/3 = -3/3
a = -1

So a = -1 and b = 3 pair up to form (a,b) = (-1,3)

--------------------------------------

To check, plug this ordered pair back into both equations

Equation 1:
3a+4b = 9
3*(-1)+4*3 = 9
-3+12 = 9
9 = 9
Equation 1 has been checked out

Equation 2:
-3a-2b = -3
-3(-1)-2(3) = -3
3 - 6 = -3
-3 = -3
this is true as well

So this confirms that the final answer is choice A
8 0
3 years ago
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Simplify 7 + (−3).
Damm [24]

Answer: 4

Step-by-step explanation: 7+-3 = 4

5 0
3 years ago
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Totsakan's school is selling tickets to a spring musical. On the first day of ticket sales the school sold 5 adult tickets and 1
bija089 [108]

Answer:

1) adult ticket: $14, child ticket: $9

Step-by-step explanation:

3 0
3 years ago
17. If x is a real number such that x3 = 729,
Nat2105 [25]

Answer:

C. 90

Step-by-step explanation:

If x^3 = 729, x = 9.

Then, plug that into x^2 + x

9 ^ 2 + 9 = 81 + 9 = 90

3 0
2 years ago
What is the value of 14 × 10,000?<br><br> 140<br><br> 1,400<br><br> 14,000<br><br> 140,000
Eddi Din [679]

Answer:

140000

Step-by-step explanation:

4 0
2 years ago
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