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wolverine [178]
3 years ago
5

48 POINTS! PLEASE HELP! Show work please THANKS

Mathematics
2 answers:
Montano1993 [528]3 years ago
5 0

Answer:

c

Step-by-step explanation:

x times 3

CaHeK987 [17]3 years ago
4 0

Answer:

C  multiply the first equation by 3

Step-by-step explanation:

3x-y =5

2x+3y = 10

We want to eliminate y

Since the first equation has a negative 1y  and the second equation has 3y

I would multiply the first equation by 3  and then the y's cancel

3(3x-y =5)

9x -3y = 15

2x+3y = 10

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

11x = 25

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vlada-n [284]

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Step-by-step explanation:

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3 years ago
A floor lamp costs $21 less than a $99 painting. How much does the floor lamp cost?
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6 0
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iris [78.8K]

The point-slope form:

y-y_1=m(x-x_1)

We have the point (1, 6) and the slope m = 7/3. Substitute:

y-6=\dfrac{7}{3}(x-1)      <em>use distributive property</em>

y-6=\dfrac{7}{3}x-\dfrac{7}{3}          <em>add 6 to both sides</em>

y=\dfrac{7}{3}x+\dfrac{11}{3}        <em>multiply both sides by 3</em>

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7x-3y=-11

Answer:

point-slope form: y-6=\dfrac{7}{3}(x-1)

slope-intercept form: y=\dfrac{7}{3}x+\dfrac{11}{3}

standard form: 7x-3y=-11

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