The perimeter of the scalene triangle is 54.6 cm.
a scalene triangle where all sides are different lengths. the base of the triangle, labeled 3 a, is three times that of the shortest side, a. the other side is labeled b.
which equation can be used to find the value of b if side a measures 8.7 cm?

4(8.7) + b = 54.6.

b = 19.8 cm.

Step-by-step explanation:

The sum of the sides = the perimeter = 3a + a + b = 54.6.

Now a = 8.7, so:

3(8.7) + 8.7 + b = 54.6

4(8.7) + b = 54.6.

b = 54.6 - 4(8.7)

b = 19.8.

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

$15 each

step-by-step explanation:

$45/3 children= $15 each