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Lerok [7]
3 years ago
9

3x+y=23, 6x-y=50, what is the value of x and y

Mathematics
1 answer:
Mice21 [21]3 years ago
4 0

Answer:

3x+y=23

6x-y=50

2(3x+y)=2(23)

6x+2y=46

(6x-y)-(6x+2y)=50-46

-3y=4

y=-4÷3

=-4/3

x=[23-(-4/3)]÷3

=24/1/3÷3

=73/3÷3

=73/9

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The area of a rectangle is 38.25 square yards and its base is 9 yards. What is the height? Do not round your answer.
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Answer:

4.25 yards

Step-by-step explanation:

Area of rectangle = Base x Height

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In this case, Area =38.25 sq yards and Base = 9 yards

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4 years ago
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Find the volume of the cylinder if the height is 3 mm and the diameter is 40 mm. Leave the answer in terms of it.
KiRa [710]

The Volume of cylinder is 3770 cubic millimeters

But, the correct option is not available in options given.

Step-by-step explanation:

Height of cylinder = 3mm

Diameter of cylinder = 40mm

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The formula used to find Volume of cylinder is:

Volume = \pi r^2h

Putting values in the formula:

Since we need radius,

radius = diameter/2

radius = 40/2

radius = 20 mm

So,

Volume = \pi r^2h\\Volume = 3.14*(20)^2*3\\Volume = 3.14*400*3\\Volume= 3769.91 or \,\,\,Volume\approx 3770\,\,cubic\,\,millimeters

The Volume of cylinder is 3770 cubic millimeters

But, the correct option is not available in options given.

Keywords: Volume of cylinder

Learn more about Volume of cylinder at:

  • brainly.com/question/12497249
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Rzqust [24]

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Step-by-step explanation:

7 0
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vova2212 [387]

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