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3 years ago

7

If y=12 when x= -15,determine y when x=2

1 answer:

Lina20 [59]3 years ago

6 0

There's no way to tell with the given information.

You've given us one point on a graph . . . (-15, 12) .

There are an infinite number of different lines that can
go through that point. We don't know anything about
the function (how 'y' depends on 'x'), so we have no way
to know any other point on the graph.

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Answer:

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3 years ago

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The correct answer is D

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Step-by-step explanation:

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4 years ago

5x+1=20 draw a tape diagram

igor_vitrenko [27]

Answer:

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4 years ago

Solve the simultaneous equations 2x-y=7 3x+y=3

Debora [2.8K]

Answer:

<h2>( 2 , - 3 )</h2>

Step-by-step explanation:

Using elimination method:

2x - y = 7

3x + y = 3

--------------

5x = 10

Divide both sides of the equation by 5

$\frac{5x}{5} = \frac{10}{5}$

Calculate

$x = 2$

Now, substitute the given value of X in the equation

3x + y = 3

$3 \times 2 + y = 3$

Multiply the numbers

$6 + y = 3$

Move constant to R.H.S and change it's sign

$y = 3 - 6$

Calculate

$y = - 3$

The possible solution of this system is the ordered pair ( x , y )

<h3>( x , y ) = ( 2 , -3 )</h3>

---------------------------------------------------------------------

Check if the given ordered pair is the solution of the system of equation

$2 \times 2 - ( - 3) = 7$

$3 \times 2 - 3 = 3$

Simplify the equalities

$7 = 7$

$3 = 3$

Since all of the equalities are true, the ordered pair is the solution of the system

<h3> ( x , y ) = ( 2 , - 3 )</h3>

Hope this helps..

Best regards!!

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3 years ago