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3 years ago

5

What is the ratio of 6 gorillas to 12 hippos ?

1 answer:

Tom [10]3 years ago

5 0

Answer:

1:2

Step-by-step explanation

6 divide 6 is one

12 divide 6 is 2

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the slope of the line below is -3. use the coordinates of the labeled point to find a slope-point equation of the line. (5,-7)

HACTEHA [7]

$\bf (\stackrel{x_1}{5}~,~\stackrel{y_1}{-7})~\hspace{10em} slope = m\implies -3 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-(-7)=-3(x-5) \\\\\\ y+7=-3x+15\implies y=-3x+8$

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3 years ago

Beatrice calculated the slope between two pairs of points.

kumpel [21]

Answer:

The answer in the procedure

Step-by-step explanation:

we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

step 1

Find the slope between (-3, -2) and (1, 0)

$m=\frac{0+2}{1+3}$

$m=\frac{2}{4}=\frac{1}{2}$

Find the equation of the line

$y-y1=m(x-x1)$

with m and the point (1,0)

substitute

$y-0=\frac{1}{2}(x-1)$

$y=\frac{1}{2}x-\frac{1}{2}$

step 2

Find the slope between (-2, -1) and (4, 2)

$m=\frac{2+1}{4+2}$

$m=\frac{3}{6}=\frac{1}{2}$

Find the equation of the line

$y-y1=m(x-x1)$

with m and the point (4,2)

substitute

$y-2=\frac{1}{2}(x-4)$

$y=\frac{1}{2}x-2+2$

$y=\frac{1}{2}x$

<em>Compare the equation of the two lines</em>

The two lines are parallel, because their slope is the same, but are different lines

therefore

Beatrice's conclusion is incorrect

All of these points are not on the same line, because are different parallel lines

The slope between (-2,-1) and (1,0) is equal to $\frac{1}{2}$

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4 years ago

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Add the expression (algebra)

vodka [1.7K]

Step-by-step explanation:

1.

$(2x+5)+(x+4)\\2x+5+x+4\\2x+x+5+4\\3x+9$

2.

$(3y-5)+(2y+4)\\3y-5+2y+4\\3y+2y-5+4\\5y-1$

3.

$(4a+12)+(-6a-13)\\4a+12-6a-13\\4a-6a+12-13\\-2a-1$

4.

$(3x+3)-(4x+6)\\3x+3-4x-6\\3x-4x+3-6\\-x-3$

5.

$(8y-7)-(y-4)\\8y-7-y+4\\8y-y-7+4\\7y-3$

6. Incomplete (3b + ?)

7.

$16y-8\\(8)(2y-1)$

8.

$-12c-8\\(4)(-3c-2)$

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3 years ago

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15.04 written as a mixed number

sattari [20]

15 and 1/25 is the mixed number for 15.04

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3 years ago

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How is 0.623 expressed as a percentage?

coldgirl [10]

Answer:

62.3%

Step-by-step explanation:

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3 years ago

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