Mark M. answered 09/11/19
Tutor
5.0
(278)
Mathematics Teacher - NCLB Highly Qualified
5x + 6x + 7x = 54
18x = 54
x = 3
The sides are 15 cm, 18 cm, and 21 cm.
Gavin P.
asked 09/11/19Solve by writing an inequality
Mark M. answered 09/11/19
Mathematics Teacher - NCLB Highly Qualified
5x + 6x + 7x = 54
18x = 54
x = 3
The sides are 15 cm, 18 cm, and 21 cm.
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