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2 years ago

Use distributive property to rewrite 9(10+x)

Mathematics

2 answers:

horsena [70]2 years ago

5 0

Distributive property states a(b+c) = ab + ac

9(10 + x) = 90 + 9x

Your answer is B. 90 + 9x.

blondinia [14]2 years ago

5 0

9(10+x)=9.10+9.x=90+9x,B)90+9x

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Show workings please

Alenkinab [10]

Answer: x = 21°

Step-by-step explanation:

37 + 4x + (3x - 4) = 180° Original Equation

37 + 4x + 3x - 4 = 180° Commutative Property of Addition

7x + 33 = 180° Combine like terms

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8 0

2 years ago

Question and choices Are below

Vika [28.1K]

Answer:

9ft

Step-by-step explanation:

Use the pythagorean theorem.

15^2 = 12^2 + x^2

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2 years ago

The perimeter of a rectangle is 62 m. The length is four more than two times the width. What is the length?

Travka [436]

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Define length and width
--------------------------------------------------
Let x be the width
width = x
Length = 2x + 4

--------------------------------------------------
Formula
--------------------------------------------------
Perimeter = 2(length + width)

--------------------------------------------------
Find Length and width
--------------------------------------------------
62 = 2(2x + 4 + x)
62 = 2(3x + 4) ← combine like terms 
62 = 6x + 8 ← remove bracket 
62 - 8 = 6x ← minus 8 on both sides 
6x = 54 ← swap sides 
x = 54 ÷ 6 ← divide by 6 on both sides
x = 9 m

--------------------------------------------------
Find Length and Width
--------------------------------------------------
Width = x = 9 m
Length = 2x + 4 = 2(9) + 4 = 22 m

--------------------------------------------------
Answer: Length = 22m
--------------------------------------------------

3 0

2 years ago

Read 2 more answers

The end points of line segment PQ are P(1, 3), and Q(7, 7). What is the midpoint of line segement PQ?

dangina [55]

Answer:

D) (4, 5)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)
Midpoint Formula: $\displaystyle (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$

Step-by-step explanation:

Step 1: Define

Point P(1, 3)

Point Q(7, 7)

Step 2: Identify

P(1, 3) → x₁ = 1, y₁ = 3

Q(7, 7) → x₂ = 7, y₂ = 7

Step 3: Find Midpoint

Simply plug in your coordinates into the midpoint formula to find midpoint

Substitute in points [Midpoint Formula]: $\displaystyle (\frac{1+7}{2},\frac{3+7}{2})$
[Midpoint] Add: $\displaystyle (\frac{8}{2},\frac{10}{2})$
[Midpoint] Divide: $\displaystyle (4,5)$