Mr. McClary writes the equation 3(3x-10) = 5(x-10). The equation shows the relationship between the perimeter of an equilateral triangle and the perimeter of a regular pentagon. What is the perimeter of the pentagon? Answer Options Are:
A. 20
B. 50
C. 100
D. 150

14

step-by-step explanation:

95.03 is the answer. hope this !

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

b). 4320 have a nice day