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Elis [28]
3 years ago
11

What are the solutions on the following system?

Mathematics
1 answer:
Oksana_A [137]3 years ago
3 0
2x+y = -5.  Solve this for y.  We get y = -2x - 5.  Find y^2:  4x^2 + 20x + 25.  Substitute 4x^2 + 20x + 25 for y^2 in the first equation:

x^2 + 4x^2 + 20x + 25 = 25

Then 5x^2 + 20x = 0, so that x = 0.  Subst. 0 for x in the 2nd eqn and find the value of y.  Write your solutions as shown above:  (  ,  ) and (  ,  ).
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Alborosie
The answer to the question is b

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3 years ago
By selling a radio with 12% profit , the profit
Setler79 [48]

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Step-by-step explanation:

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3 years ago
Given the expression -15 (10 2/3) A. Rewrite the expression using distributive property B. Evaluate the expression in show all y
Ainat [17]

9514 1404 393

Answer:

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Step-by-step explanation:

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The mixed number can be written as the sum of an integer and a fraction. The multiplier then multiplies the integer and the fraction separately, and the two products are added.

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A circular running track is 1/4 of a mile long Elena runs this track completing each lap in 1/20 of an hour what is her speed
PSYCHO15rus [73]

Answer:

The speed is equal to 5\frac{mi}{h}

Step-by-step explanation:

we know that

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Let

x------> the distance in miles

y-----> the time in hours

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s=\frac{x}{y}

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substitute

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3 0
2 years ago
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