Franciso makes 4 identical bags of trail mix. Each bag has 2 1/2 ounces of peanuts and an equal weight of raisins. He uses 16 ounces altogether. Determine how many ounces of raisins are in one bag.

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

answer: 1inch=7days  

12inch=12*7=84days

step-by-step explanation: