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3 years ago

What is -2x-y=-9. 5x-2y=18

Mathematics

1 answer:

Vaselesa [24]3 years ago

7 0

Answer:

I put them in slop so

1) y= -2x+9

2) y=5/2x -9

it would help to say what u need to solve it for but hoped it helped

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The populations of two cities after t years can be modeled by -150t+50,000 and 50t+70,0000 . What is the difference in the popul

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Answer:

25,800

Step-by-step explanation:

Plug in 4 everytime you see T.

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Step-by-step explanation:

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3 years ago

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Answer:

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5(2x - 2y) - (4x + 3y)

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2 years ago

What's is the slope of this line? Need this ASAP

Basile [38]

Answer:

$\displaystyle m=2$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Reading a Cartesian Plane

Coordinates (x, y)

Slope Formula: $\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (0, 3)

Point (1, 5)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [Slope Formula]: $\displaystyle m=\frac{5-3}{1-0}$
[Slope] Subtract: $\displaystyle m=\frac{2}{1}$
[Slope] Divide: $\displaystyle m=2$

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3 years ago