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Scilla [17]
3 years ago
9

If Samantha has 30 marbles and gave 2 away, how much will she have left?

Mathematics
2 answers:
Tatiana [17]3 years ago
7 0

30-2=28. Samantha has 28 marbles left.

gtnhenbr [62]3 years ago
6 0

Samantha will have 28 marbles left.

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What is the image point of (-12, -8) after the transformation R270° 0 D. ?
Gennadij [26K]

Given:

The point is (-12,-8).

Rule of transformation is R_{270^\circ}\circ D_{\dfrac{1}{4}}.

To find:

The coordinates of image after transformation.

Solution:

According to the rule of transformation R_{270^\circ}\circ D_{\dfrac{1}{4}}, first the point is dilated by factor \dfrac{1}{4} with origin as center of dilation after that it was rotated 270 degrees anticlockwise.

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(x,y)\to \left(\dfrac{1}{4}x,\dfrac{1}{4}y\right)

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If a point is rotated 270 degrees anticlockwise, then

(x,y)\to (y,-x)

(-3,-2)\to ((-2),-(-3))

(-3,-2)\to (-2,3)

Therefore, the coordinates of image after transformation are (-2,3).

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3 years ago
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What is the value of x in the equation 3x-4y=65, when y equals 4?
andreev551 [17]

Answer:

x = 27

Step-by-step explanation:

3x - 4y = 65

3x = 65 + 4y

<em><u>Find x, when y = 4</u></em>

3x = 65 + 4 (4)

3x = 65 + 16

3x = 81

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A=bh

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A=6(10)

Multiply:

A=60\text{ units}^2

Our answer is A.

And we're done!

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Answer:

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Step-by-step explanation:

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