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andrezito [222]
3 years ago
12

PLEASE HELP!!!!

Mathematics
1 answer:
alina1380 [7]3 years ago
7 0

Answer:

B, D, E  

Step-by-step explanation:

-8x  -  6y = 10

  x + 7y =    9

You can multiply any of these equations by a constant without changing the solution.

B. 4x + 3y = -10 is equivalent to multiplying each side of the first equation by -½.

D. -16x - 12y = 20 is equivalent to multiplying each side of the first equation by 2.

E. 3x + 21y = 27 is equivalent to multiplying each side of the second equation by 3.

A. -2x + 7y = 9 is wrong. The signs don't match those of the second equation.

C. 24x + 18y = 10 is wrong. The signs don't match those of the first equation.

F. x - 14y = -18 is wrong. The coefficient of x should be -2.

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The cost (in dollars) in making b bracelets is represented by 4+5b. The cost (in dollars) of making b necklaces is represented b
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Step-by-step explanation:

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8 0
3 years ago
The solutions to the inequality y<-x+1 are shaded on the graph. Which point is a solution?
suter [353]
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I know that the solution cannot have two positive coordinates because the first quadrant is not part of the solution, so I won't guess A or C. 
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idek

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idek

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