Answer:
-3+1/5
Step-by-step explanation:
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:
Write the equation as x minus 89 = 7 and add 89 to both sides. The answer is 96.
Step-by-step explanation:
Difference means subtraction. So, x-89=7. To solve it, we are going to add 89 to both sides of the equation, which gives us x=7+89, which is x=96. So, the answer is the second one: Write the equation as x minus 89 = 7 and add 89 to both sides. The answer is 96.
Answer:
56 messages.
Step-by-step explanation:
So, from the $79 you subtract $45.37, which results in $33.63. That is the amount he has left for the text messages. So, you divide $33.63 by 0.60c, which results in 56.05. However, you cannot have a .05 of a text message, so it rounds to 56 messages.
Hope I helped!!
300 percent is the answer
