QUESTION 2 of 10: You have a budget of $3,000 to spend on a survey. If the base cost of the survey is $850 plus $4.50 per person
2 answers:
Answer:
Option A.
Step-by-step explanation:
Base cost of the survey is defined by the expression
Base cost C = 850 + 4.5x
where x = number of persons surveyed
If the budget to spend on a survey is = $3000
Then Number of person we can survey can be determined by
3000 = 850 + 4.5x
4.5x = 3000 - 850
4.5x = 2150
x =
x = 477.78
But the number of persons surveyed can not be in fraction.
Therefore, sample size we can afford is 477.
Option A. is the answer.
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Question:
Point T, the midpoint of segment RS, can be found using the formulas x = (1/2) (6 – 2) + 2 and y = (1/2) (4 – 6) + 6. What are the coordinates of point T?
Answer:
Step-by-step explanation:
Given
Required
Determine the coordinates of T
The coordinates of T can be represented as
To do this, we simply solve for x and y
Solve 6 - 2
Solve 1/2 * 4
Solve 4 - 6
Solve 1/2 * -2
Hence, the coordinates of T(x,y) is:
Answer: c.
Step-by-step explanation:
As per given , we have
Total number of residents injured from roller-skating =1,800
Total number of deaths from roller-skating = 90
Formula for Mortality rate :
Then, the proportional mortality ratio (%) due to roller-skating was
=
= 5%
Hence, the correct answer is c.