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2 years ago

13

If Kayla purchased 17 ounces of coffee, what would be the cost?

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Kruka [31]2 years ago

4 0

How much is the coffee per ounce?

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A line passes through point A (14,21). A second point on the line has an x-value that is 125% of the x-value of point A and a y-

seropon [69]

Answer:

The equation of the line in point-slope form is $y-21 = - \frac{3}{2}\cdot (x-14)$ .

Step-by-step explanation:

According to the statement, let $A(x,y) = (14,21)$ and $B(x,y) = (1.25\cdot x_{A},0.75\cdot y_{A})$ . The equation of the line in point-slope form is defined by the following formula:

$y-y_{A} = m\cdot (x-x_{A})$ (1)

Where:

$x_{A}$ , $y_{A}$ - Coordinates of the point A, dimensionless.

$m$ - Slope, dimensionless.

$x$ - Independent variable, dimensionless.

$y$ - Dependent variable, dimensionless.

In addition, the slope of the line is defined by:

$m = \frac{y_{B}-y_{A}}{x_{B}-x_{A}}$ (2)

If we know that $x_{A} = 14$ and $y_{A} = 21$ , then the equation of the line in point-slope form is:

$x_{B} = 1.25\cdot (14)$

$x_{B} = 17.5$

$y_{B} = 0.75\cdot (21)$

$y_{B} = 15.75$

From (2):

$m = \frac{15.75-21}{17.5-14}$

$m = -\frac{3}{2}$

By (1):

$y-21 = - \frac{3}{2}\cdot (x-14)$

The equation of the line in point-slope form is $y-21 = - \frac{3}{2}\cdot (x-14)$ .

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2 years ago

Who is the Best scientist in 1993

BabaBlast [244]

Michael smith and Kary B. Mullís

8 0

2 years ago

2.50+0.50=21 help meeeeeeeeeee

Rzqust [24]

Answer:

You are missing some of the equation my dude

Step-by-step explanation:

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2 years ago

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Which relationship is always true for the angles r, x, y, and z of triangle ABC?

DiKsa [7]

180 - x = r is true.

Thats the only one which is true.

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3 years ago

What is -a-2 if a = -5?

Vladimir79 [104]

Answer:

3

Step-by-step explanation:

-(-5) -2

5 - 2

3

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2 years ago

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