Which of the following represents the probability that a PN or an RN is a female?

 

County Hospital staff distribution
	PN	RN
Male	30	50
Female	50	70

We are given:

• Bill = $43.20
• Gratuity = 15%

Step 1: Calculate 15% of $43.20

0.15×43.20=6.48

Step 2: Add the gratuity to the bill

43.20+6.48=49.68

Correct answer: D. $49.68

We're told the ordered pair (3, 24) lies on the line representing the relationship between:

• x = number of lunches,
• y = total cost in dollars.

So, (3, 24) means:

When 3 lunches are ordered, the total cost is $24.

Correct answer: C. 3 lunches cost a total of $24

Let’s quickly rule out the others:

• A. Says each lunch is $24 — wrong.
• B. Reverses the values.
• D. Says 24 lunches cost $3 each — not related to (3, 24).

We are asked to find an equation for Y, the profit (or dollars raised), based on:

• Selling price per T-shirt: $12
• Cost per T-shirt: $5
• One-time fixed cost: $150
• Number of shirts sold: x

Step-by-step breakdown:

• Total Revenue:

Revenue=12x

• Total Cost:

Cost=150+5x

• Profit (Y) = Revenue – Cost:

Y=12x−(150+5x)

Correct answer: D. Y = 12x – (5x + 150)

Let's convert all the values to decimals for easy comparison:

• A. 4.4 → already in decimal
• B. 4.25 → already in decimal
• C. 10/3 = 3.33...
• D. 9/2 = 4.5

Compare all values:

• A: 4.4
• B: 4.25
• C: 3.33
• D: 4.5

Correct answer: D. 9/2 (which equals 4.5, the greatest value)

We’re given the equation:

=10

Step 1: Multiply both sides by 5

−x+36=50

Step 2: Subtract 36 from both sides

−x=14

Step 3: Multiply both sides by -1

x=−14

Correct answer: D. -14

Explanation

We are given:

• Pool C drains in 6 hours
• Pool B takes 3 times as long as Pool C →

B=3×6=18hours

• Pool B takes twice as long as Pool A →

A=182=9hours

Correct answer: D. 9

We can solve this using a proportion, since the dose is directly proportional to the child's weight.

Step 1: Set up the proportion

20 mg/50 lb=x/ mg35 lb

Step 2: Solve for xxx

x =

=700/50

=14 mg

Correct answer: C. 14 mg

We are given:

• 1 teaspoon ≈ 4.93 mL
• The recipe calls for 2.5 teaspoons

Step 1: Multiply

2.5×4.93=12.325 mL

Correct answer: B. 12.325 mL

We are given:

• Monthly income: $2,586.00
• Deductions:
  • Insurance: $517.20
  • Federal taxes: $299.33
  • Social security: $156.69
  • State taxes: $99.77

Step 1: Add all deductions

517.20+299.33+156.69+99.77=1,072.99

Step 2: Subtract from gross income

2,586.00−1,072.99=1,513.01

Correct answer: C. $1,513.01

The dependent variable is the one that depends on or is determined by other variables.

In this case:

• Price is determined by the model, mileage, and age

Correct answer: A. Price

Because it depends on the other factors listed.