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Aleks [24]
3 years ago
5

A triangle has side lengths of (2.4k-7.4) centimeters, (6.3k-2.2) centimeters and (6.8m+2.4) centimeters. which expression repre

sents the perimeter, in centimeters, of the triangle?
a. 9.2m-0.9k
b.-9.6+9.2m+8.7k
c. 6.8m-7.2+8.7k
d. -5k+4.1+9.2m
Mathematics
1 answer:
MrRa [10]3 years ago
6 0

c. 6.8m-7.2+8.7k

(2.4k-7.4)+(6.3k-2.2)+(6.8m+2.4) combine like terms

2.4k+6.3k+6.8m-7.4-2.2+2.4\\9.7k+6.8m-9.6+2.4\\9.7k+6.8m-7.2

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