10. sarah is planning to fence in her backyard garden. one side of the garden is 34 feet long, another side is 30 feet long, and the third side is 67 feet long. find the perimeter of sarah’s garden to determine the amount of fencing material needed.
a.262 ft.
b.68,340 ft.
c.250 ft.
d.131 ft.

D. 131 ft.

Step-by-step explanation:

If Sarah is planning to fence in her backyard garden and one side of the garden is 34 feet long, another side is 30 feet long, and the third side is 67 feet long. The perimeter of Sarah’s garden to determine the amount of fencing material needed is 131 feet.

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