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3 years ago

8

Solve by Elimination

2 answers:

dezoksy [38]3 years ago

5 0

Answer: (3,4)

multiply both sides of the top equation by 2

get rid of the x variable by subtracting add all corresponding numbers and variables (4+(-4), -4+7, -4+16) which leaves you with 3y=12

divide both sides by 3 which cancels out the 3y and leaves you with y=4

input y in your top equation to find x. (-2x+2x4=2)

this leaves you with x=3

I HOPE THAT MADE SENSE!!!

Leona [35]3 years ago

3 0

1) (3,4), 2) (1,9), 3) (4,4)

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3x=2x+5<br> What is the value of x?

Alika [10]

Answer:

5

Step-by-step explanation:

3x=2x+5

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x=5

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Lelu [443]

Answer:

The corresponding side in the smaller figure is 9 cm

Step-by-step explanation:

Notice that you can use proportions to solve this problem:

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Therefore use this type of proportions to find the length of the corresponding side to 12 cm in the smaller figure:

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3 years ago

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lutik1710 [3]

Answer:

$\sf 3x(3x+y)(2x-1)$

Step-by-step explanation:

Given expression:

$\sf 18x^3 + 6x^2y - 9x^2 - 3xy$

Factor out common term $\sf 3x$ :

$\sf \implies 3x(6x^2 + 2xy - 3x - y)$

Factor $\sf (6x^2 + 2xy - 3x - y)$

Rearrange:

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Factor pairs of terms:

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2 years ago

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aivan3 [116]

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3 years ago

Find the volume of the prism. round to the nearest tenth

babymother [125]

Answer:

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General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right<u> </u>

<u>Geometry</u>

Volume of a Prism Formula: V = lwh

<em>l</em> is length
<em>w</em> is width
<em>h</em> is height

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify variables</em>

<em>l</em> = 13.8 cm

<em>w</em> = 4.5 cm

<em>h</em> = 5 cm

<u>Step 2: Solve for </u><em><u>V</u></em>

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