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natka813 [3]
3 years ago
15

Check all that apply

Mathematics
2 answers:
Alinara [238K]3 years ago
7 0

Answer:

Check the 2nd and 3rd answer choices.  See below.

Step-by-step explanation:

Look carefully at the 2nd and 3rd of the given equations.  Note that each of these two can be made identical to 3x + 2y = -12 through multiplication of each by a constant.  Regarding the 2nd answer choice, if we multiply this equation by -1, we obtain 3x + 2y = -12.  Regarding the 3rd answer choice, if we mult. this equation by 5, we get 3x + 2y = -12 again.  

Thus, the 2nd and 3rd answer choice equation have the same solution as does 3x + 2y = -12.

shusha [124]3 years ago
6 0

3x + 2y = -12

equivalent to

-3x - 2y = 12

and

15x + 10y = -60

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Y=-1,X+2y=9 solve by substitution show all work
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Answer:

x = 11

Step-by-step explanation:

Substitute y = -1 into the equation.

x+2y = 9

; x+2(-1) = 9

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x = 11

4 0
3 years ago
Do the points P (-1, 6), Q (3, 7) and R (3, -5) form a right triangle? <br> ( show your work )
Molodets [167]

Step-by-step explanation:

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5 0
3 years ago
Luke Skywalker mixes bantha milk that is 16% protein with tauntaun milk that is 9% protein. How many pounds of each should he mi
umka2103 [35]

<em>b</em> = amount of bantha milk

<em>t</em> = amount of tauntaun milk

<em>b</em> + <em>t</em> = 350

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0.16 <em>b</em> + 0.09 (350 - <em>b</em>) = 42

0.16 <em>b</em> + 31.5 - 0.09 <em>b</em> = 42

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6 0
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Reptile [31]

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3 0
3 years ago
Jay paid $126 to rent a car for 4 days. Stephanie paid $184.50 to rent a car for 6 days.
vazorg [7]
You need to divide the amount by the number of days to find the price per day so
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and
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So
The answer is
<span>C. </span><span>Stephanie paid the lower daily rate of $30.75. </span><span />
6 0
3 years ago
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