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3 years ago

Prove that if -5(x+4)=70, then x=-18

Mathematics

1 answer:

kvv77 [185]3 years ago

6 0

Input negative 18 into x and distribute. on both sides of the equal sign you should get 70=70

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The Empire State Building weights about 7.3 x 10 ^8

kvasek [131]

Answer:

730000000 lbs?

Step-by-step explanation:

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3 years ago

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Joey went to a toy show at the local community center. He bought action figures and trading cards. He spent a total amount of $3

GuDViN [60]

$34.04 - $4.22 = $29.82
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3 years ago

Find the missing side length of the triangle 10m 7.5m

xxTIMURxx [149]

Answer:

c = 12.5

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] Pythagorean Theorem: a² + b² = c²

a is a leg
b is another leg
c is the hypotenuse

Step-by-step explanation:

Step 1: Identify

Leg a = 7.5

Leg b = 10

Hypotenuse c = c

Step 2: Solve for c

Substitute in variables [Pythagorean Theorem]: 7.5² + 10² = c²
Rewrite: c² = 7.5² + 10²
Evaluate exponents: c² = 56.25 + 100
Add: c² = 156.25
[Equality Property] Square root both sides: c = 12.5

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3 years ago

A baseball manager has 12 players of the same ability how many nine player starting lineup starting create

Alja [10]

That is 12*11*10*9*8*7*6*5*4=79833600 ways

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3 years ago

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Lapatulllka [165]

Answer:

-3(x-y)

Step-by-step explanation:

The difference of x and y: x-y

Negative three times the difference of x and y: -3(x-y)

7 0

3 years ago