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3 years ago

Solve for x please ???

Mathematics

1 answer:

murzikaleks [220]3 years ago

5 0

(x-4) / 3 = 8
multiply both sides by 3 cancelling the 3 on the left side
x - 4 = 8 * 3
x - 4 = 24
x = 24 + 4
x = 28

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Divide a³+8b³ by a+2b

Gre4nikov [31]

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3 years ago

What’s 9/4 - 9/8 need it in a reduced fraction

Tasya [4]

Answer:

9/8 or 1 1/8

Step-by-step explanation:

9/4 - 9/8

Need a common denominator, multiply 9/4 x 2/2

18/8 - 9/8

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18-9 = 9

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7 0

2 years ago

Read 2 more answers

Adam plans to choose a video game from a section of the store where everything is 75%

Minchanka [31]

Answer:

Look below

Step-by-step explanation:

In Adam's expression, d represents the original price of the game. 0.75d represents 75% of the original price; this is the amount of the discount, since everything is 75% off. Taking the difference of the original price and the discount, d-0.75d, gives us the total price of the game. In Rena's expression, 0.25 represents 25%. This is because taking 75% off of the price means we still pay 100-75 = 25% of the original price. Multiplying the original price, d, by the 0.25, gives us 25% of the original price; this is the total price.

6 0

2 years ago

I Am Not Sure if B is Correct Please Help Me

Nookie1986 [14]

YZ is the diameter, so arc YZ = 360°/2 = 180°

arc XZ = 360° - arc YZ - arc YWX = 360° - 180° - 100° = 80°

∠XYZ is an inscribed angle so it is equal to half the arc XZ

∠XYZ = 80°/2 = 40°

3 0

3 years ago

Find the value of x.round to the nearest tenth

Nata [24]

Answer:

$\displaystyle x \approx 8.2$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Trigonometry

[Right Triangles Only] SOHCAHTOA

[Right Triangles Only] sinθ = opposite over hypotenuse

Step-by-step explanation:

Step 1: Identify Variables

Angle θ = 23°

Opposite Leg = x

Hypotenuse = 21

Step 2: Solve for x

Substitute in variables [sine]: $\displaystyle sin(23^\circ) = \frac{x}{21}$
[Multiplication Property of Equality] Isolate x: $\displaystyle 21sin(23^\circ) = x$
Rewrite: $\displaystyle x = 21sin(23^\circ)$
Evaluate: $\displaystyle x = 8.20535$
Round: $\displaystyle x \approx 8.2$

7 0

2 years ago