There are 9 water bottles in the refrigerator. I add 3 full boxes of water bottles to the refrigerator. Then i had two more boxes that each had 1 fewer bottle then the full box. Now that i'm done there's 67 bottles. What equation would find the number of bottles in a full box

There are twelve 12 bottles in one full box.

Step-by-step explanation:

From  the given information:

suppose there are 9 water bottles in the refrigerator,

and 3 full boxes of water are being added, we do not know the total number of bottles in a box, so let's represent it by b

i.e. 3b

However, two more boxes are being added which had 1 fewer bottle than the full box.

i.e.  2(b-1)

Now to determine the number of bottles in a full box, we have:

9 + 3b +2(b-1) = 67

9 + 3b + 2b - 2 = 67

5b + 7 = 67

5b = 67 - 7

5b = 60

b = 60/5

b = 12

Hence, there are twelve 12 bottles in one full box.

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 1 : option "c"

answer 2 : option "d"

answer 3 : option "b"

answer 4 : option "d"

answer 5 : option "b"

answer 6 : option "a"

answer 7 : option "c"

answer 8 : option "d"

answer 9 : option "c"

answer 10 : option "d"

answer 11 : option "c"

answer 12 option "b"

answer 13 option "c"

answer 14 option "c"

answer 15 option "d"

answer 16 option "a"

answer 17 option "b"

answer 18 option "c"

answer 19 option "a"

answer 20 option "a"

answer 21 option "c"

d