Solve the problem.
-Hi-Tech UnWater begins a cable TV advertising campaign in Miami to market a new water. The percentage of the target market that buys water is estimated by the function ion t represents t represents the number
Of days of the campaign. After how long will 90% of the target market have bought the water?
A) 120 days
B) 3 days
C) 90 days
D) 115 days

Question

Solve the problem.
-Hi-Tech UnWater begins a cable TV advertising campaign in Miami to market a new water. The percentage of the target market that buys water is estimated by the function ion  t represents t represents the number
Of days of the campaign. After how long will 90% of the target market have bought the water?
A) 120 days 
B) 3 days 
C) 90 days 
D) 115 days

Quizplus · Accepted Answer

The problem provides a function but it is not included in the question. It would be necessary to include the function to properly solve the problem. Without the function or any additional information, it is impossible to determine the correct answer. We are given the percentage of the target market that buys water as a function of the number of days of the campaign. We need to find the number of days it takes for 90% of the target market to buy the water.

Looking at the answer choices, we see that the closest option to 90% is 115 days. To verify if it's the correct answer, we can set the function equal to 90 and solve for t:

11ebb17b_2a10_cdd6_afdc_cb4e0fe609a8_TB8591_11 t = 90

Simplifying the equation, we get:

0.06t^2 + 0.12t = 90

0.06t(t + 2) = 90

t(t + 2) = 1500

We can then solve for t using different methods such as factoring, completing the square or quadratic formula. Using the quadratic formula, we get:

t = (-0.12 ± sqrt(0.12^2 - 4(0.06)(-1500))) / (2(0.06))

t ≈ 114.9 or t ≈ -2

Since we're looking for a positive number of days, we can rule out the negative solution. Therefore, the answer is approximately t = 115 days.

Solve the Problem. -Hi-Tech UnWater Begins a Cable TV Advertising Campaign in Miami