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MA_775_DIABLO [31]
3 years ago
13

Can someone please help me and explain how to solve them Will give 45 points

Mathematics
2 answers:
pav-90 [236]3 years ago
8 0
A.) Blue triangle: 4x+2 + 7x+7 + 5x-4 =
The perimeter of the blue triangle is 16x-5.

Pink triangle: 2x-5 + x+7 + x+3= 4x-5


B.) 16x-5 - 4x-5= 12x


C.) Blue triangle: 16(3)-5= 43

Pink triangle: 4(3)-5= 7
kobusy [5.1K]3 years ago
6 0
Recall that the perimeter is the sum of all the sides.  So, for the first triangle, the perimeter is 4x+2+7x+7+5x-4 = 16x + 5 

second triangle:  x+3 + 2x-5 + x+7  (combine like terms)

Part b:  Subtract the perimeter of the smaller triangle from the perimeter of the larger triangle.

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