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ale4655 [162]
3 years ago
15

Solve 5x+2y=4 x-y=5 (by elimination)I really need help

Mathematics
1 answer:
Ray Of Light [21]3 years ago
6 0
I hope this helps you



x=5+y



5 (5+y)+2y= 4



25+5y+2y=4



7y= -21



y= -3



x=5+y


x=5-3 x= 2
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The radius is 3 inches.

r=3

The height is three times the radius.

Multiply the radius by three to get the height.

h=3*3\\h=9

The height is 9 inches.

Use the formula to find the volume.

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The exact volume is 81\pi inches cubed.

81 * \pi ≈ 254.47

254.47 ≈ 254.5

The volume of the cylinder should be about 254.5 inches cubed.

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