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3 years ago

Which of the following values are solutions to the inequality 3 -

Mathematics

1 answer:

forsale [732]3 years ago

5 0

Answer:

None

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define

2x < -10

Step 2: Solve for x

Divide 2 on both sides: x < -5

Here we see that any value x smaller than -5 would work as a solution.

Step 3: Identify

Answer choices.

I. -2

II. 2

III. 10

We see that none of these numbers are less than -5. Therefore, non of the answer choices are correct.

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The first expression is equal to 5x+2x=7x.

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We can calculate if the two expressions can be equal, we write:

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3 years ago

What is the solution to the system of equations below? y=-1/3x+9 and y=2/3x-12

Lady bird [3.3K]

Answer:

The correct answer option is (21, 2).

Step-by-step explanation:

We are given the following two equations and we are to find the solution to this system of equations:

$y=-\frac{1}{3} x+9$ --- (1)

$y=\frac{2}{3} x-12$ --- (2)

Since the left hand side of the both the equation is equal so we can equate the right hand sides of these equations equal to each other.

$-\frac{1}{3} x+9 = \frac{2}{3} x-12$

$\frac{2}{3} x+\frac{1}{3} x = 9+12$

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Substituting this value of x in (2) to find y:

$y=\frac{2}{3} (21) - 12$

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4 years ago

Read 2 more answers