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musickatia [10]
3 years ago
9

A rectangle has a length of 2x + 7 and a width of 3x + 8y. Write and simplify an expression for the perimeter of that rectangle.

Mathematics
1 answer:
IrinaVladis [17]3 years ago
4 0
This is your information...
Length: 2x + 7 
Width: 3x + 8y 
Perimeter: 2(l + w) ...or... 2l + 2w
Now let's substitute...
2(l + w)
l = 2x + 7
w = 3x + 8y
2(2x+7+3x+8y)
Now combine the like terms: 
2(5x+7+8y)
Now distribute the number 2:
10x+14+16y
That is the perimeter
I HOPE THIS HELPED!!!! :D ;D
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