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cricket20 [7]
3 years ago
14

3m4 +21 - am4 - 7a =

Mathematics
1 answer:
Yuliya22 [10]3 years ago
8 0
Plug into a calculator
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Jimmy measured to find the total number of square inches that covered the top of a rectangular table.
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Lea wants to save money on a new computer. At the store near her, the computer she wants is listed at a regular price of 400.00.
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Answer:

280

Step-by-step explanation:

400.00-40%=280

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X-5y-z=-20<br><br>-2x-y-6z=25<br><br>-x-4y-z=-15<br>Solve by elimination
Tju [1.3M]

Answer:

x = 0

y = 5

z = -5.

Step-by-step explanation:

X-5y-z=-20

-2x-y-6z=25

-x-4y-z=-15

Add equation 1 and 3:

-9y - 2z = -35 .......... A

Multiply the first equation by 2:

2x - 10y - 2z = -40

Now add this to equation 2:

-11y -8z = -15.............B

Now multiply equation A by -4:

36y + 8x = 140.........C

Add equations B and C:

25y = 125

y = 5.

Substitute for y in equation A:

-9*5 - 2z = -35

2z = -45 + 35 = - 10

z = -5.

Now find x by substituting for y and z in the first equation:

x - 5(5) - (-5) = -20

x - 20 = -20

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3 years ago
You are standing on the middle rung of a ladder.
julia-pushkina [17]

8 ..................................

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2 years ago
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A recycling bin is in the shape of a right rectangular prism. The bin is 12 meters long, 512 meters wide, and 612 meters tall. W
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The volume of a rectangular prism can be found using the formula V = WHL.

W is the width, H is the height, and L is the length.

V = 512×612×12
V = 3,760,128

The volume of the bin is 3,760,128
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3 years ago
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