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3 years ago

7

When solving a system of inequalities, which of the following methods are used? A.guess and check

1 answer:

yarga [219]3 years ago

7 0

Answer:

Option B - graphing is the correct answer.

Step-by-step explanation:

To solve a system of inequalities we need graphing. Inequality tells us about the relative size of two values. When we graph the x and y co-ordinates, the solution is not the drawn line, but the area of the coordinate plane that satisfies the inequality. In inequalities, multiple solutions can be possible.

Plug and chug method does not a complete solution, it only tells where a point belongs. Guess and check does not apply here.

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One fifth of a number, decreased by 17 is 41 in algebraic expression

asambeis [7]

The correct algebraic expression is X ÷ 5 - 17 = 41

<h3>What is an algebraic expression?</h3>

An algebraic expression is a term that refers to a way of representing mathematical operations in which letters and numbers are combined, related to signs of the operations such as:

Addition (+)
Subtraction (-)
Multiplication (×)
Division (÷)
Empowerment ( $x^{2}$ )

According to the above, we can infer that the correct algebraic expression would be:

X ÷ 5 - 17 = 41

In this algebraic expression the letter X represents a number that we do not know and we must find.

Learn more about algebraics in: brainly.com/question/953809

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1 year ago

Read 2 more answers

Which product is positive?<br> ( 13 ( 31 )<br> ( 31 )<br> (3) ( 13 (1)

Anastaziya [24]

The first one because it’s (13(31)

8 0

3 years ago

Theorem: A line parallel to one side of a triangle divides the other two proportionately.

Elenna [48]

Answer:

Segment BF = 16 is true.

Step-by-step explanation:

Since, DE is parallel to BC, so DE will divide AB and AC proportionally.

Hence,

$\frac{AE}{EC} = \frac{AD}{DB}$

⇒ $\frac{12}{18} = \frac{6}{DB}$

{Since, given that AE = 12, EC = 18 and AD = 6}

⇒ BD = 9.

Again, since, EF is parallel to AB, so EF will divide BC and AC proportionally.

Hence, $\frac{CE}{AE} = \frac{FC}{BF}$

⇒ $\frac{18}{12} = \frac{24}{BF}$

{Since, given that AE = 12, EC = 18 and FC= 24}

⇒ BF = 16.

Therefore, segment BF = 16 is true. (Answer)

3 0

3 years ago

Jamie purchased a DVD that was on sale for 15% off. The sales tax in her county is 5%. Let y represent the original price of the

Mamont248 [21]

0.05(0.85y)=5%(of the onsale dvd) and a is just the on sale dvd (85%)

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2 years ago

Simplify (6 5x) (7x 3)

antiseptic1488 [7]

(6 + 5x)(7x + 3) = 42x + 18 + 35x^2 + 15x = 35x^2 + 57x + 18

3 0

3 years ago