At the greenhouse where you work you need to make soil and vermiculite mixtures for potting plants. flowering bushes need a mixture of 70 percent soil and 30 percent vermiculite by volume. about how many buckets of vermiculite should you add to 5 buckets of soil​

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

step-by-step explanation: the answer for wha if rt is 10 centimeters long, and wha is st? it’s 6