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3 years ago

3x + 2y = 9 x - 4y = 4

Mathematics

1 answer:

kherson [118]3 years ago

7 0

Answer:

Enter a problem...

Algebra Examples

Popular Problems Algebra Solve by Substitution 3x-4y=9 , -3x+2y=9

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Solve for

in the first equation.

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Replace all occurrences of

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Simplify

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Solve for

in the second equation.

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Move all terms not containing

to the right side of the equation.

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Divide each term by

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and simplify.

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Replace all occurrences of

with

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Simplify

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The solution to the system of equations can be represented as a point.

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The result can be shown in multiple forms.

Point Form:

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Equation Form:

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image of graph

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Combine like terms to simplify the expression: 7x + 3y - 2 + 6x + 1 + y^2

a_sh-v [17]

The correct answer is B because after you simplifiy the expression, you would get that answer:

7x + 3y - 2 + 6x + 1 + y^2

combine all the like terms to one side first

7x + 6x - 2 + 1 + y^2

then simplify

13x - 1 + y^2 or y^2 + 3y + 13x - 1

8 0

3 years ago

Which of the following is a solution to the inequality?

Liono4ka [1.6K]

Answer:

M= 25

<h2>step by step Explanation:</h2>

i think this is correct ans if this is correct ans pls give me brainliest.

3 0

3 years ago

Given that $x \le -7,$ identify all the correct conclusions. (A) $3x \le -21.$ (B) $3x \ge -21.$ (C) $-3x \le 21.$ (D) $-3x \ge

exis [7]

Answer:

Options A and D are correct choices.

Step-by-step explanation:

We have been given an inequality $x\leq -7$ and we are asked to find the correct options from our given choices.

Let us solve inequalities in our given options one by one to see which of these matches with our given inequality.

(A) $3x\leq -21$

$x\leq \frac{-21}{3}$

$x\leq -7$

We can see that option A gives the same answer as our given inequality, therefore, option A is the correct choice.

(B) $3x\geq -21$

$x\geq \frac{-21}{3}$

$x\geq -7$

This inequality represented in option C gives solution that x should be greater than or equal to -7, which is opposite to our given inequality, therefore, option B is incorrect.

Dividing inequality by a negative number swaps inequality sign.

$x\geq \frac{21}{-3}$

$x\geq -7$

This inequality gives solution that x should be greater than or equal to -7, which is opposite to our given inequality, therefore, option C is incorrect.

(D) $-3x\geq 21$

Dividing inequality by a negative number swaps inequality sign.

$x\leq \frac{21}{-3}$

$x\leq -7$

We can see that option D gives the same answer as our given inequality, therefore, option D is the correct choice.

8 0

3 years ago

You are wearing a pair of cargo pants with six pockets. you put $10 on one of those pockets, but you cannot remember which one a

LenKa [72]

Answer:

$\frac{1}{4}$

Step-by-step explanation:

According to the given information ,there still 4 pockets to check .

Then

the possibility that the money will be in the next pocket :

$=\frac{1}{4}$

7 0

2 years ago

Give an example of two numbers that are both 6-digit numbers, but the greater number is determined by the hundreds place

SashulF [63]

The order of the numbers for a 6-digit number from left to right is as follows:
hundred thousands, ten thousands, thousands, hundreds, tens and then units

We want two numbers were the greater number is determined by its hundreds place, these two numbers can be:
165,827 and 165,229
The hundreds in the first is 8 while the hundreds in the second is 2. Therefore, the first number is larger.

6 0

3 years ago