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2 years ago

Help!!Need help please help me

Mathematics

1 answer:

irina [24]2 years ago

3 0

8x-6y=-96 add to this -4 times the second equation...
-8x-12y=-48
___________

-18y=-144

y=8, this makes 8x-6y=-96 become:

8x-48=-96

8x=-48

x=-6

so the solution to the system of equations is the point:

(-6,8)

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A rettangle is 10 inches smaller than it is wide. The perimeter of the

meriva

Answer:

A. Width = 25 Length = 15

Step-by-step explanation:

Length = L = Width - 10

Width = W

Perimeter of a rectangle

=> 2 (L + B) = 80

=> 2 (W - 10 + W) = 80

=> 2 (2W - 10) = 80

=> 4W -20 = 80

=> 4W -20 + 20 = 80 + 20

=> 4W = 100

=> 4W/4 = 100/4

=> W = 25

Width = 25

Length = 25 - 10 = 15

So, the answer is A.

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2 years ago

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2 years ago

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The answer would be B) 4mph

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goldfiish [28.3K]

Answer:

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Step-by-step explanation:

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Since we are giving the diameter (14) we must divide by 2 to find the radius.

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Time to plug these values in!

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We have to distribute pi to 7 square that term and then multiply the value by 9.

V = 1385.44

Hope this Helps! :)

Have any questions? Ask below in the comments and I will try my best to answer.

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2 years ago