In a central city grand prix, out of the 30 cars that started the race 16 of them finished. what percent of the cars finished the race.

53.33%

Step-by-step explanation:

(16/30)*100=0.5333333333*100=53.33%

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