2. Choose the correct term: The is the decrease from the

originai price of an item to its sale price

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2. Choose the correct term: The is the decrease from the

originai price of an item to its sale price

1)The dimensions you are solving for

length of the rectangular room

width of the rectangular room

2)Now let the length be L and the width be w then

the perimeter is 2L+2W

2L+ 2W = 24(1)

Also, "Twice the length decreased by three times the width is 4 feet" can be written as

2L - 3W = 4(2)

Solving (1) and (2) by elimination method, by subtraction

2L+ 2W = 24

2L - 3W = 4

(-) (-) (-)

0L +5W = 20

5W = 20

W = 4(3)

Now by substitution method,substituting (3) in(1)

2L+ 2(4) = 24

2L + 8 = 24

2L = 24 -8

2L = 16

L = 8

Substituting in the original equation and rechecking the perimeter

=2(8) + 2(4)

=16 + 8

= 24

Thus the found dimensions are correct

3)The length of the room is 8 feet and the width of the room is 4 feet.