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kari74 [83]
3 years ago
7

Johnny's drink coaster has a radius of 4 inches. what is the coasters diameter

Mathematics
1 answer:
GREYUIT [131]3 years ago
7 0

Answer:

the coaster diameter is 8

<h2>diameter=2r</h2><h3> d=4+4 #d=8</h3>
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Step-by-step explanation:

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Where "m" is the slope of the line and "b" is the y-intercept.

In this case, you have the first equation:

y=-\frac{1}{2}x+4\frac{1}{2}

You can identify that:

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If you convert the Mixed number to a Decimal number, you get:

b=4+0.5=4.5

Then, knowing the slope and the y-intercept, you can graph the line.

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Knowing that:

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The point of intersection between both lines, is the solution of the system. This is:

(6,1.5)

Observe the graph attached.

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Step-by-step explanation:

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