98.6k views
1 vote
I need help is due today!!!

The length of a living room is 12 feet and it’s width is 10 1/2 feet. The length of the room is being expanded by x feet. Select all the expressions that represent the area of the living room in square feet.

A. 10.5 (12x) square feet

B. (10.5 + 12 + x) square feet

C.10.5( 12 + x) square feet

D.126x square feet

E.(126 + 10.5) square feet

F.( 22.5 + x) square feet

User Ptim
by
7.8k points

2 Answers

3 votes

Answer:

Option C

Explanation:

The original length of the room = 12 feet

After expansion, the new length =
(12 + x) feet


Width of the room = 10
(1)/(2) feet = 10.5 feet

Area of a rectangle = Length × Width

The shape of the living room is a rectangle.


Area of living room =
(12 + x) feet ×
(10.5) feet

= 10.5(12 + x) square feet

Expand the brackets or parenthesis by applying the Distributive Law:


= (12)(10.5) + (10.5)(x) square feet

=
(125 + 10x) square feet

Option C

User Zal
by
8.8k points
5 votes

Answer:

answer is A

Explanation:

because area of a rectangle is L × B

or length × width

since the length is expanded by x

10.5 (12x)

User Digoferra
by
8.6k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories