Calculate Rectangle Area with Dimensions (x+5) and (y+2)

Calculate the area of the rectangle

y+2y+2y+2x+5x+5x+5

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Find the expression for the rectangle's area
00:03 We'll use the formula for calculating rectangle area (side times side)
00:07 We'll substitute appropriate values according to the given data and solve to find the area
00:14 We'll properly open parentheses and multiply X by the 2 factors:
00:23 Now we'll multiply 5 by the 2 factors
00:36 And this is the solution to the question

Step-by-step written solution

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1

Understand the problem

Calculate the area of the rectangle

y+2y+2y+2x+5x+5x+5

2

Step-by-step solution

Let's begin by reminding ourselves of the formula to calculate the area of a rectangle: width X length

S=wh S=w⋅h

Where:

S = area

w = width

h = height

We extract the data from the sides of the rectangle in the figure.

w=x+5 w=x+5 h=y+2 h=y+2

We then substitute the above data into the formula in order to calculate the area of the rectangle:

S=wh=(x+5)(y+2) S=w⋅h=(x+5)(y+2)

We use the formula of the extended distributive property:

(a+b)(c+d)=ac+ad+bc+bd (a+b)(c+d)=ac+ad+bc+bd

We once again substitute and solve the problem as follows:

S=(x+5)(y+2)=(x)(y)+(x)(2)+(5)(y)+(5)(2) S=(x+5)(y+2)=(x)(y)+(x)(2)+(5)(y)+(5)(2)

(x)(y)+(x)(2)+(5)(y)+(5)(2)=xy+2x+5y+10 (x)(y)+(x)(2)+(5)(y)+(5)(2)=xy+2x+5y+10

Therefore, the correct answer is option C: xy+2x+5y+10.

3

Final Answer

xy+2x+5y+10 xy+2x+5y+10

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\( 140-70= \)

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