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3 years ago

The equations 2x+7=3 and bx-10=-2 have the same solution for x. Find the value of b.

Mathematics

1 answer:

White raven [17]3 years ago

4 0

Solve both equations for x:

2x+7 = 3

2x = -4

x = -2

Plug x into the equation which contains b:

b(-2) -10 = -2

-2b = 8

b = -4

Answer:

b = -4

x = -2

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Rainbow [258]

Substitute each value of x in y=2x-3

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y= -7

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y= 2(0)-3
y= 0-3
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third box (3)
y=2(3)-3
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3 years ago

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Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.

My name is Ann [436]

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3 years ago

denis-greek [22]

Answer:

Part a) $AB=15\ cm$

Part b) $AB=11.1\ cm$

Part c) $AB=3/5\ cm$

Part d) $AB=3s\ cm$

Step-by-step explanation:

see the attached figure to better understand the question

we know that

To find the length of the image after a dilation, multiply the length of the pre-image by the scale factor

Part a) we have

The scale factor is 5

The length of the pre-image is 3 cm

therefore

The length of the image AB after dilation is

$3(5)=15\ cm$

Part b) we have

The scale factor is 3.7

The length of the pre-image is 3 cm

therefore

The length of the image AB after dilation is

$3(3.7)=11.1\ cm$

Part c) we have

The scale factor is 1/5

The length of the pre-image is 3 cm

therefore

The length of the image AB after dilation is

$3(1/5)=3/5\ cm$

Part d) we have

The scale factor is s

The length of the pre-image is 3 cm

therefore

The length of the image AB after dilation is

$3(s)=3s\ cm$

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8090 [49]

Answer:

Step-by-step explanation:

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garri49 [273]

So you have 5.36
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3 years ago

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