A28 feet support beam is cut into two pieces so that one is six times the length of the other. how long is the longest piece

The longest piece is 24 ft and the smallest piece is 4 ft

24 feet

Step-by-step explanation

4×6=24 leaves 4ft

24+4=28ft

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