Mathematics Flashcards
6 cards from real NEX practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Mathematics flashcards as text
What is 3/8 + 5/12?
Answer: 19/24
Find the LCD (24): 3/8 = 9/24, 5/12 = 10/24. Sum: 9/24 + 10/24 = 19/24.
A nurse works 36 hours per week. If she receives a 15% pay increase on her hourly rate of $28, what is her new weekly pay?
Answer: $1,159.20
New hourly rate: $28 × 1.15 = $32.20. New weekly pay: $32.20 × 36 = $1,159.20.
Simplify: 4² × 3 - 2(5 + 3)
Answer: 32
Following order of operations (PEMDAS): 4² = 16, parentheses: 5+3 = 8, then 16 × 3 = 48, and 2 × 8 = 16. Finally: 48 - 16 = 32.
Convert 2.75 to a fraction in lowest terms.
Answer: Both A and C
2.75 = 2 + 0.75 = 2 + 75/100 = 2 + 3/4 = 2 3/4, which equals 11/4 as an improper fraction. Both A and C are correct representations.
If a medication vial costs $12.50 and the hospital uses an average of 8 vials per day, what is the monthly cost for 30 days?
Answer: $3,000
Daily cost: $12.50 × 8 = $100. Monthly cost: $100 × 30 = $3,000.
What is the mean of the following patient temperatures: 98.6, 99.2, 100.4, 98.8, 101.0?
Answer: 99.6°F
Mean = sum of all values / number of values = (98.6 + 99.2 + 100.4 + 98.8 + 101.0) / 5 = 498.0 / 5 = 99.6°F.