3 years ago

The length of a rectangle is 6 centimeters less than the width. The perimeter is 206 centimeters. Find the width and the length.

Mathematics

1 answer:

Inga [223]3 years ago

7 0

Answer:

34.3333333333

Step-by-step explanation:

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PLEASEEEEE:

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What is the product of (3.8 x 106) and (6 x 103)?

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3 years ago

Please do elimination method 2x-9y=-36 -14x+18y=-18

Varvara68 [4.7K]

Answer:

The solution to the system of equations will be:

$x=9,\:y=6$

Step-by-step explanation:

Given the system of equations

$\begin{bmatrix}2x-9y=-36\\ -14x+18y=-18\end{bmatrix}$

Multiply 2x-9y=-36 by 7

$14x-63y=-252$

so the system of equations becomes

$\begin{bmatrix}14x-63y=-252\\ -14x+18y=-18\end{bmatrix}$

Adding both equations

$-14x+18y=-18$

$+$

$\underline{14x-63y=-252}$

$-45y=-270$

solve -45y = -270 for y

$-45y=-270$

divide both sides by -45

$\frac{-45y}{-45}=\frac{-270}{-45}$

Simplify

$y=6$

For 14x-63y = -270 plug in y = 6

$14x-63\cdot \:6=-252$

$14x-378=-252$

Add 378 to both sides

$14x-378+378=-252+378$

Simplify

$14x=126$

Divide both sides by 14

$\frac{14x}{14}=\frac{126}{14}$

Simplify

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Therefore, the solution to the system of equations will be:

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3 years ago

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