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nikitadnepr [17]
3 years ago
13

Consider the following system of equations. 2x + 3y = 12 -4x + 5y = -4 Which of the following equations could be used to create

an equivalent system (a system with the same solution)? Select all that apply.
A. -8x + 10y = -4
B. -2x + 8y = 8
C. 6x + 9y = 36
D. 6x - 2y = 8
E. x + 3/2y = 6
Mathematics
2 answers:
Yuki888 [10]3 years ago
7 0

Answer:

b

Step-by-step explanation:

 -2x+8y=8

Advocard [28]3 years ago
6 0
The answer is
B. -2x + 8y = 8
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If a < b then ka < kb
IrinaK [193]
What? That dose not make any sense
8 0
2 years ago
How to solve this using trigonometry?
Leya [2.2K]
Using SOHCAHTOA and Kenui's height and angle of depression (which is the downward angle from the horizontal ) the answer should be:  

because its the Adjacent and Opposite sides use Tan;  
Tan(6.8) = o/a
tan(6.8) = Distance / 219
tan(6.8)(219 = Distance 
26.114 m 

But because the angle of depression is the downward angle from the horizontal the answer may be Tan(83.2)(219) = 1836.589
the 83.2 coming from 90 degrees - 6.8 degrees 

either way i"m still unsure because I don't see a need for the two angles or Mias involvement, sorry if I'm wrong  


8 0
3 years ago
Carlos and Lily want to know the combined amount of money they made last week. They both made $12 per hour, but Carlos also made
steposvetlana [31]

Answer:

  • Lily is right

Step-by-step explanation:

<u>Carlos made:</u>

  • 12C + 35

<u>Lily made:</u>

  • 12L

<u>Together they made:</u>

  • 12C + 35 + 12L = 12(C + L) + 35

Lily is right. We don't know what 120 means in Carlos's equation, he should put 12L for Lily.

6 0
2 years ago
Five less than the product of 14 and carlos's age
lesya [120]
Is this the full question that is stated?

6 0
2 years ago
What is the sum of natural numbers less than 200 neither divisible by 3 nor by 5
Sveta_85 [38]

Step-by-step explanation:

The required sum 

=(1+2+3+...+199)−(3+6+9+...+198)−(5+10+15+...+195)+(15+30+45+...+195)

=2199(1+199)−266(3+198)−239(5+195)+213(15+195)

 

=199×100−33×201−39×100+13×105=10732

8 0
2 years ago
Read 2 more answers
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