The cost, in millions, to remove x% of pollution in a pond is modeled by the equation:
C=6350/(425-3x)
.
What is the cost to remove 75% of the pollution?
Hint: Plug in and calculate, do not convert to a decimal.
Can someone tell me how figure this out step by step recheck my answer PLEASEEEEEE!!!
cost = 6350/(425 - 3(.25)) =$ 14.967
it would cost about $15 million
To find the cost to remove 75% of the pollution, we need to substitute x = 75 into the equation C = 6350 / (425 - 3x). Here are the steps to calculate it correctly:
Step 1: Start with the given equation:
C = 6350 / (425 - 3x)
Step 2: Substitute x = 75 into the equation:
C = 6350 / (425 - 3(75))
Step 3: Simplify the expression inside the parentheses:
C = 6350 / (425 - 225)
Step 4: Continue simplifying:
C = 6350 / 200
Step 5: Divide 6350 by 200:
C = 31.75
So, the cost to remove 75% of the pollution is $31.75 million, not $14.967 million.
Therefore, the answer is approximately $32 million, not $15 million as you initially calculated.
Please note that in Step 2, you should substitute x = 75, not x = 0.25. The value for x represents the percentage, so it should be a whole number.