2x - 5y=-15
can someone walk me through this?

Answers

Answer 1
Answer: The equation given in the question has two unknown variables in the form of "x" and "y". The exact value of "x" and "y" cannot be determined as two equations are needed to get to the exact values of "x" and "y". This equation can definitely be used to show the way for determining the values of "x" in terms of "y"and the value of "y" in terms of "x". Now let us check the equation given.
2x - 5y = - 15
2x = 5y - 15
2x = 5(y - 3)
x = [5(y - 3)]/2
Similarly the way the value of y can be determined in terms of "x" can also be shown.
2x - 5y = - 15
-5y = - 2x - 15
-5y = -(2x + 15)
5y = 2x + 15
y = (2x +15)/5
   = (2x/5) + (15/5)
   = (2x/5) + 3
So the final value of x is [5(y -3)]/2 and the value of y is (2x/5) + 3.

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which of these story problems describes the sum 19 + (-12)? check all that apply. show your work to justify your answer.

Answers

which of these story problems describes the sum 19 + (-12)? check all that apply. show your work to justify your answer.

1

2. is the right answer

3

Answer:

FREE PNTS!

Step-by-step explanation:

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Answers

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In the 1st generation, there are 3 rabbits in a meadow.

Answers

Answer: Option C

a_n=3(6)^(n-1)

Step-by-step explanation:

The number of rabbits in each generation can be modeled using a geometric sequence of the form:

a_n=a_1(r)^(n-1)

Where a_1 is the first term of the sequence, a_n is the ninth term of the series, r is the common ratio

To find the proportion we divide the consecutive terms of the sequence as shown

(18)/(3)=6\n\n(108)/(18)=6

Then the common ratio is: r=6

The first term of the series is: a_1=3

Then the explicit formula is:

a_n=3(6)^(n-1)

The answer is: Option C

Answer: I think the answer is C.

Step-by-step explanation:I don't really know how to explain but I think that's correct.

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Answers

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Answers

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Answers

Answer:

2.rational 3.integer 4.whole number

Step-by-step explanation:

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2.Rational 3.Integer