3 years ago

Having a bit of trouble solving this problem

Mathematics

1 answer:

Firdavs [7]3 years ago

8 0

X=7
25=DO
35=OG
THESE ARE THE ANSWERS

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The length of a living room is 12 feet and its width is 1012 feet. The length of the room is being expanded by x feet. Choose an

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Answer:

Option C. 10.5(12 + x) square feet

Option E. (126 + 10.5x) square feet

Step-by-step explanation:

step 1

Find the area of the original living room

we know that

The area of the original living room is equal to

$A=LW$

we have

$L=12\ ft\\W=10\frac{1}{2}\ ft=10.5\ ft$

substitute

$A=(12)(10.5)=126\ ft^2$

step 2

Find the new area of the living room

The length of the room is being expanded by x feet

we have

$L=(12+x)\ ft\\W=10.5\ ft$

The new area is

$A=10.5(12+x)\ ft^2$

The expanded form of the expression is

Apply distributive property

$A=10.5(12)+10.5(x)\\A=(126+10.5x)\ ft^2$

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Answer:

Step-by-step explanation:

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