Q+B=13. When B+3=0
You have 2 separate equations.
First solve the 2nd equation for B:
B +3 = 0
Subtract 3 from both sides:
B +3 - 3 = 0-3
Simplify:
B = -3
Now we have a value for B, we can replace b with -3 in the first equation and solve for Q:
Q + -3 = 13
Add 3 to each side:
Q + -3 + 3 = 13+3
Simplify:
Q = 16
So you have Q = 16 and B = -3
Answer:
2 batches
Step-by-step explanation:
You can estimate the number of batches as ...
(7 barrels)/(3 barrels/batch) ≈ 2 batches
Then you can check to see if it is actually 2 batches:
(3 2/3) × 2 = 6 4/3 = 7 1/3 . . . . . . yes, it is exactly 2 batches
