$\frac{\big{3+y}}{\big{y}}=7\ \ \ \Rightarrow\ \ \ D:\ y \neq 0\\\\ \frac{\big{3+y}}{\big{y}}\cdot y=7\cdot y\\\\3+y=7y\\\\y-7y=-3\\\\-6y=-3\ /:(-6)\\\\y= \frac{3}{6} \\\\y= \frac{1}{2} \ \in\ D$

3 0

3 years ago

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Darla washed 5/7 of the windows on a building, and Martha washed 1/7 of them. How much greater was Darlas fraction of the window

Natalija [7]

Answer:

4/7 greater

Step-by-step explanation:

5/7-1/7=4/7

7 0

2 years ago

15. Identify the slope of the line graphed below? *

maw [93]

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 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

Identify points from graph

Point (0, -1)

Point (1, 1)

Step 2: Find slope m

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

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

7 0

2 years ago

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