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3 years ago

Solve for x: 2x + 5y = 8 x= -? y + ? / ?

Mathematics

1 answer:

dmitriy555 [2]3 years ago

3 0

1. Subtract 5y:2x=8-5y
2. Divide by 2:

Answer: x=-5/4+4

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Which graph represents y−4=2(x−3) ?

lina2011 [118]

First put the equation in point slope form:
y - 4 = 2x - 6
y = 2x - 2
Then graph this, which will look like this

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3 years ago

Math help please! Graph x >2

Harman [31]

The answer is the top left.
Since it is a > sign, it will be a dotted line and a shade to the right (greater). As for x, it is greater than 2. Thus, the graph will be a dotted line connecting the points of which the x coordinate is 2,and shaded to the right.

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3 years ago

jasmine bought wax that will cover 400 square feet per gallon. jasmine needs to wax 4704 square foot surface with 2 coats of wax

WINSTONCH [101]

Answer:

Step-by-step explanation:

400 × 12 = 4,800

4,800 needed for ONE coat.

Since you need TWO coats, double 12, then you should get 24.

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2 years ago

Write an equation for the line passing through the given pair of points. give the final answer in standard form (-4,-2) and (3,-

Andrew [12]

Answer:

y = -2/7x - 22/7

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

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

Slope-Intercept Form: y = mx + b

m - slope

b - y-intercept

Step-by-step explanation:

Step 1: Define

Point (-4, -2)

Point (3, -4)

Step 2: Find slope m

Substitute: $m=\frac{-4+2}{3+4}$
Add: $m=\frac{-2}{7}$

Step 3: Find y-intercept b

Define: y = -2/7x + b
Substitute: -4 = -2/7(3) + b
Multiply: -4 = -6/7 + b
Isolate b: -22/7 = b
Rewrite: b = -22/7

Step 4: Write linear equation

y = -2/7x - 22/7

7 0

3 years ago

Solve for x* (17x - 8)

djyliett [7]

Answer:x=4

Step-by-step explanation:

This triangle is an equilateral triangle with all angles equal.

Sum of angles in a triangle=180

17x-8+17x-8+17x-8=180

Collect like terms

17x+17x+17x-8-8-8=180

51x-24=180

51x=180+24

51x=204

Divide both sides by 51

51x/51=204/51

x=4

3 0

3 years ago