Correct Answer: D

Rationale:
To find out what percent 9 is of 36, divide 9 by 36 and multiply by 100 to convert it to a percentage. So, (9/36) * 100 = 25%. This indicates that 9 is 25% of 36, not 10%.
Choice A, 25%, is the result of calculating what percent 36 is of 9, not the other way around.

Choices B and C are incorrect as they do not align with the calculated percentage.

Correct Answer: B

Rationale:
To calculate the percentage of her earnings that Jill saved, divide the amount saved ($140) by the total earnings ($400) and then multiply by 100 to find the percentage.
Therefore, (140/400) * 100 = 35%. Jill saved 35% of her earnings.
Choice A (30%) is incorrect because it underestimates the percentage saved.
Choice C (40%) is incorrect as it overestimates the percentage saved.
Choice D (25%) is incorrect for the same reason. The correct calculation is 140/400 = 0.35 * 100 = 35%.

Correct Answer: A

Rationale:
To convert meters to millimeters, you multiply by 1000 since there are 1000 millimeters in 1 meter.
Therefore, 5 meters multiplied by 1000 equals 5000 millimeters.
Choice A is correct as it represents the accurate conversion from meters to millimeters.

Choices B, C, and D are incorrect as they do not provide the correct conversion factor from meters to millimeters.

Correct Answer: A

Rationale:
Rationale:
-
To determine the highest average systolic pressure, you need to identify the highest individual systolic pressure reading in the dataset.
- Option A instructs you to find the largest number in the "systolic pressure" column, which directly addresses the task of identifying the highest systolic pressure reading.
- Comparing means (Option
B) would not necessarily give you the highest individual systolic pressure reading, as averages can be influenced by the distribution of values within each age group.
- Adding all systolic pressure values and dividing by the total number of patients (Option
C) would give you the overall average systolic pressure, not the highest individual reading.
- Subtracting the lowest systolic pressure from the highest (Option
D) would give you the range of systolic pressures, not specifically the highest individual reading.


Therefore, the correct approach to determine the highest average systolic pressure

Correct Answer: C

Rationale:
To divide by a fraction, we can multiply by its reciprocal.
Therefore, dividing 32 by 8/9 is the same as multiplying 32 by 9/8, which equals 36. The correct answer is C.
Choice A, 4 & 1/9, is incorrect because the result is a whole number.
Choice B, 4, is incorrect as it does not consider the fraction.
Choice D, 28 & 4/9, is incorrect as it is not the result of dividing 32 by 8/9.