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3 years ago

What would the phrase “three times the sum of a number and 4” look like as variable expression?

Mathematics

1 answer:

IgorC [24]3 years ago

4 0

3(x+4)

Three times -> 3()

the sum of a number and four x+4

3(x+4)

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Solve for a.

FinnZ [79.3K]

Answer:

iii) a=3b/2

Step-by-step explanation:

7a-2b= 5a+b

7a-5a=2b+b

2a=3b

a=3b/2

8 0

3 years ago

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Does anyone know the answer to this one?

AlladinOne [14]

Answer:

10.5cm^3

Step-by-step explanation:

Volume =l×b×h

3×7/4×2

3×1.75×2

10.5cm^3

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plz mark as brainliest

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2 years ago

What is the slope of the line that passes through the points (-8,-1) and (-12,-2) ?

kramer

Answer:

1/3

Step-by-step explanation:

To find the slope subtract the second y-coordinate from the first y-coordinate and divide it by the result of the second x-coordinate from the first.

-2 - -1 = -1

-12 - -8= -3

-1/-3 = 1/3

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3 years ago

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4 times a number added to -5 is the same as the sum of twice the number and 11. What is the number?

prisoha [69]

Answer: A. x=8

Step-by-step explanation:

6 0

2 years ago

HELP PLS QUICK

Daniel [21]

Answer:

$\displaystyle d \approx 7.07$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Reading a Cartesian plane
Coordinates (x, y)

Algebra II

Distance Formula: $\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Step-by-step explanation:

Step 1: Define

Point C (-2, 0)

Point D (3, 5)

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d

Substitute in points [Distance Formula]: $\displaystyle d = \sqrt{(3+2)^2+(5-0)^2}$
[√Radical] (Parenthesis) Add/Subtract: $\displaystyle d = \sqrt{(5)^2+(5)^2}$
[√Radical] Evaluate exponents: $\displaystyle d = \sqrt{25+25}$
[√Radical] Add: $\displaystyle d = \sqrt{50}$
[√Radical] Simplify: $\displaystyle d = 5\sqrt{2}$
[√Radical] Evaluate: $\displaystyle d = 7.07107$
Round: $\displaystyle d \approx 7.07$

3 0

3 years ago