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8090 [49]
3 years ago
5

What are the x and y-intercepts of the line described by the equation? -6x + 3y = 18.9

Mathematics
1 answer:
-BARSIC- [3]3 years ago
8 0

Answer:

x-intercept - x = 1/2y - 3.15

y-intercept - y = 2x + 6.3

Step-by-step explanation:

For x,

-6x + 3y = 18.9

-6x = -3y + 18.9

x = -3y/-6 + 18.9/-6

x = 1/2y - 3.15

For y,

-6x + 3y = 18.9

3y = 6x + 18.9

y = 6x/3 + 18.9/3

y = 2x + 6.3

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If three times the larger of two numbers is four times the smaller and the difference between the numbers is 8, then the larger
MaRussiya [10]

Answer:

Larger number = 32

Step-by-step explanation:

Smaller number = x

Larger number = y

y - x = 8    -----------(I)

3y = 4x  ---------------(II)

3y/4 = x

Plug in x = 3y/4 in equation (I)

y - \frac{3}{4}y = 8\\\\\frac{4}{4}y - \frac{3}{4}y = 8\\\\\frac{1}{4}y = 8\\

 y = 8*4

  y = 32

Plug in y = 32 in equation (II)

3y = 4x

3*32 = 4x

4x = 3*32

x = \frac{3*32}{4}

x = 3 *8

x = 24

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2 years ago
What is 0.4(5+2x)-0.5=3(0.3x+0.7) I've solved this but I'm not sure I got the right answer
BlackZzzverrR [31]
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5 0
3 years ago
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Which values of x would make a polynomial equal to zero if the factors of the polynomial were (x+3) and (x+12)
Alex Ar [27]

Answer:

A product of factors is zero if and only if one or more of the factors is zero.  That is, if ab = 0, then either a = 0 or b = 0 (or both).

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Hence the values of x that make (x+3)(x+12) = 0 are x = 3 and x = 12.

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Sliva [168]

Answer:

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6 0
3 years ago
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Through (-1,-1), slope of 4 what is the standard form equation of the line through the given point with a given slope
Vinvika [58]

Answer:

The equation of the line is -4x + y = 3

Step-by-step explanation:

Since we have the slope, we can use it and either point in point-slope form and solve for the standard form of the equation.

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3 years ago
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