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3 years ago

Solve system of equation by elimination:

Mathematics

2 answers:

777dan777 [17]3 years ago

6 0

Answer:

its b

Step-by-step explanation:

mars1129 [50]3 years ago

4 0

Answer:

a. (4, 1)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

-x + 4y = -8

-5x - 4y = -16

Step 2: Solve for x

Elimination

Combine equations: -6x = -24
Isolate x: x = 4

Step 3: Solve for y

Define equation: -x + 4y = -8
Substitute in x: -4 + 4y = -8
Isolate y term: 4y = -4
Isolate y: y = -1

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3 years ago

The owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club. She would now like to det

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Answer:

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Given that the owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club.

$H_0: Mean = 30\\H_a: Mean >30$

(Right tailed test)

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Sample mean = 30.45

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3 years ago

On Monday, 339 students went on a trip to the zoo. All 6buses were filled and 9 students had to travel in cars. How many student

marissa [1.9K]

Answer: Step-by-step explanation:

not sure

4 0

2 years ago

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Need help on graphing problem

aivan3 [116]

J is your answer.

Slope is rise over run + your Y intercept.

Your y- intercept is the point in the graph in which the line passes through, the line passes through -2, so you know -2 is going to be your answer at the end. And slope is rise/run.

From one point to another, you rise 1 time , and run over 3 so you know your answer is

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hope this helps :)

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2 years ago

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Virty [35]

Answer:

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Step-by-step explanation:

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