3 years ago

Which statement makes the open sentence true 2x-7= -1

Mathematics

1 answer:

oee [108]3 years ago

6 0

Answer:

Step-by-step explanation:

if you plug in 3 for x, it becomes 2(3)-7=-1

then 6-7=-1

-1=-1

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Y=_x+4 x + 2y = 8 How many solutions dose this linear system have

jeyben [28]

Answer:

X=-1, y=4

Step-by-step explanation:

$y = x + 4 \\ x + 2y = 8 \\ = = = = = = = = = = = = \\ y - x = 4 \\ x + 2y = 8$

by using eliminating property

$3y = 12 \\ y = \frac{12}{3} = 4$

by substitution

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2 years ago

Lilly has 8 dollars.She needs 80 dollars for a new bike.How much more monney does she need

Viktor [21]

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3 years ago

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Virty [35]

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3 years ago

Find the slope of the line below . Enter your answer as a fraction or decimal. Use a slash mark ( / ) as the fraction bar if nec

rusak2 [61]

Answer:

$\displaystyle m = 3$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Reading a coordinate 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 (-4, -4)

Point (-2, 2)

Step 2: Find slope m

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

Substitute in points [Slope Formula]: $\displaystyle m = \frac{2--4}{-2--4}$
[Fraction] Subtract: $\displaystyle m = \frac{6}{2}$
[Fraction] Divide: $\displaystyle m = 3$

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3 years ago

Select the TWO true statements. A. Two squares with the same side lengths are always congruent. B. Two rectangles with the same

Anastasy [175]

Answer:

A and C

Step-by-step explanation:

This would be the correct answers because they are congruent and dilated from each other

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3 years ago