There would probably be multiple ways to solve this, but I will only show you one of them.
First, we need to figure out how many tablespoons of the chemical solution it takes to decrease the number of bacteria in a gallon to 300. So we subtract 1200 by 300, to find the number of unnecessary bacteria, which is 900. Now we divide 900 by 75, which is 12. So it would take 12 tablespoons of the chemical solution to make a gallon have 300 bacteria.
There are 500 gallons, and we need to put 12 tablespoons of the chem-solution in each gallon. So we multiply 500 by 12, which is 6,000. Meaning that 6,000 tablespoons of chemical solution would be needed to make the 500-gallon tank have 300 bacteria per gallon.
Answer:
The last one
Step-by-step explanation:
Hi! I can help you with
The formula for finding the perimeter of a rectangle
P= 2(a+b)
Plug in the numbers and
P=2(18+15) (
P=2(33)
P=66
Hope it's correct!
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$180 taken away from $450 is $220. the rest i'm not quite sure because there wasn't a given price for the music.