In a scale drawing for a garden, 2 cm = 1 m. If the garden measures 8 cm by 10 cm in the drawing, how large will it be in reality?

Correct Answer: C

Rationale: In the scale drawing, 2 cm represents 1 m. To find the actual dimensions of the garden in reality, we need to multiply the dimensions in the drawing by the scale factor. So, 8 cm x 2 = 16 cm in reality (length) and 10 cm x 2 = 20 cm in reality (width). Converting these to meters, the garden will be 16 m by 20 m. Choices A, B, and D are incorrect because they do not correctly apply the scale factor to determine the actual dimensions of the garden.

Correct Answer: C

Rationale: To divide 11 by 5, you need to perform the division operation. 11 divided by 5 equals 2.2. Therefore, the correct answer is C. Choice A (1.424) and Choice B (1.622) are incorrect as they do not result from the division of 11 by 5. Choice D (2) is close but not accurate, as the exact result of 11 divided by 5 is 2.2.

Correct Answer: D

Rationale: To find the total cost of purchasing 5 bars of soap, multiply the cost of one bar of soap by the number of bars. If one bar costs $0.96, then 5 bars would cost $0.96 x 5 = $4.80. Therefore, the correct answer is $4.80. Option A, $3.30, is incorrect as it does not result from the correct multiplication. Option B, $3.80, is also incorrect as it does not reflect the total cost of 5 bars. Option C, $4.30, is incorrect as it does not represent the accurate total cost of purchasing 5 bars of soap.

Correct Answer: C

Rationale: Rationale: To express 2/5 as a decimal, you divide the numerator (2) by the denominator (5). This division results in 0.4, which is option C. Option A (0.2) is incorrect because 2 divided by 5 is not equal to 0.2. Option B (0.25) is also incorrect because 2 divided by 5 is not equal to 0.25. Option D (2.5) is incorrect because 2 divided by 5 is not equal to 2.5. Understanding how to convert fractions to decimals is essential in pharmacology when calculating medication dosages. Pharmacology involves precise calculations to ensure accurate dosing for patient safety. Nurses and pharmacists often need to convert fractions to decimals to correctly measure and administer medications. This math skill is crucial in preventing medication errors and providing quality patient care. Practicing fraction to decimal conversions will enhance medication calculation proficiency and promote patient well-being in healthcare settings.

Correct Answer: C

Rationale: If 80% of the class passed with a 75 or higher, and that equals 24 students, you can set up a proportion to find the total number of students in the class. Since 80% is equal to 24 students, 100% (the whole class) would be equal to (24/80) x 100 = 30 students. Therefore, the total number of students in the whole class is 30 / 80 x 100 = 36. Choice A (18) is incorrect as it does not match the calculation based on the information given. Choice B (30) is incorrect because it represents the intermediate calculation but not the total number of students in the class. Choice D (60) is incorrect as it is double the correct answer and does not align with the given information.