120k views
2 votes
A triangle has side lengths of (3q + 1) centimeters, (5q-3) centimeters, and

(r-9) centimeters. Which expression represents the perimeter, in centimeters, of
the triangle?

User Minimi
by
4.5k points

1 Answer

6 votes
add them all together
3q+1+5q-3+r-9
collect like terms
8q+r-11
is that right?
User FableBlaze
by
3.6k points