1 year ago

11. Find the missing side of the placemat shown if the perimeter is 28x + 11 inches.

Mathematics

1 answer:

vesna_86 [32]1 year ago

7 0

Answer:

7x-5 in

Step-by-step explanation:

(8x + 2)+(5x+12)+(8x + 2)+?=28x+11

8x+2+5x+12+8x+2+?=28x+11

8x+5x+8x+2+12+2+?=28x+11

13x+8x+16+?=28x+11

21x+16+?=28x+11

21x-21x+16+?=28x-21x+11

16+?=7x+11

16-16+?=7x+11-16

?=7x-5 in

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