Answer:
8 Minutes
Step-by-step explanation:
since we are trying to find how many minutes have passed we first need to find how much substance was used during the time. we can do that by subtracting the leftover substance from the amount we started with.
666-562 = 104
Now that we know how much substance was used we can then use our conversion rate (13 per minute) and find how many minutes have passed by dividing.
104 / 13 = 8
Answer:
i think it is b
Step-by-step explanation:
Answer:
18 Pounds
Step-by-step explanation:
Variable: s=how much you sister weighs
One equation would be:
94 - s = 112
You then have to isolate the variable by subtracting 94 from each side to get:
s=18
I don't if I explained it that well.