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omeli [17]
3 years ago
7

What is the solution to the system of equations below? 3x-2y=7 and -3x+5y=5

Mathematics
1 answer:
Zolol [24]3 years ago
8 0

Step-by-step explanation:

So you add one over the other

3x-2y=7

-3x+5y=5

=

3y=12

Then you divide 3 from both sides

(3y)/3=12/3

y=4

Then you substitute the y=4 in to the equation of your choice

3x-2(4)=7

3x-8=7

3x-8=7

+8 +8

3x=15

x=5

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3 years ago
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3 0
3 years ago
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9514 1404 393

Answer:

  1. (f×g)(x) = 2x^2 +2x
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Step-by-step explanation:

The distributive property applies.

1. (fg)(x) = f(x)·g(x) = (2x)·(x +1)

  (f×g)(x) = 2x^2 +2x

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2. (fg)(x) = f(x)·g(x) = (2y -7)·(3y +5) = 2y(3y +5) -7(3y +5)

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<em>Additional comment</em>

Please note in problem 2 that the function argument is x and the variable in the given expressions is y. This means the function value is exactly and only <em>6y^2 -11y -35 for any value of x</em>. It does not change when x changes. (We suspect a typo.)

7 0
3 years ago
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4.
natka813 [3]

Answer:

16 miles

Step-by-step explanation:

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3 years ago
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