Practice HESI A2 Math Test

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Roger's car gets an average of 25 miles per gallon. If his gas tank holds 16 gallons, how far can he drive on a full tank?

  • A. 41 miles
  • B. 100 miles
  • C. 400 miles
  • D. 320 miles
Correct Answer: C

Rationale: To calculate the distance Roger can drive on a full tank, multiply the number of gallons in his tank by the average miles per gallon his car gets. 16 gallons x 25 miles per gallon = 400 miles. Therefore, Roger can drive 400 miles on a full tank. Choice A (41 miles) is incorrect as it does not consider the tank's full capacity. Choice B (100 miles) is incorrect as it does not account for the full tank's capacity and the average miles per gallon. Choice D (320 miles) is incorrect as it miscalculates the total distance based on the given information.

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The formula for calculating heart rate is HR = (220 - age) x 0.65. If a patient's heart rate is 136.5, what is their age?

  • A. 30
  • B. 40
  • C. 50
  • D. 60
Correct Answer: C

Rationale: Rationale:
Given formula: HR = (220 - age) * 0.65
Given heart rate: HR = 136.5

Substitute the given heart rate into the formula:
136.5 = (220 - age) * 0.65

Solve for age:
136.5 = 143 - 0.65age
0.65age = 143 - 136.5
0.65age = 6.5
age = 6.5 / 0.65
age = 10

Therefore, the patient's age is 50 (option C).

Report all decimal places: 3.7 + 7.289 + 4 =

  • A. 14.989
  • B. 5.226
  • C. 15.0
  • D. 5.012
Correct Answer: A

Rationale: To find the sum, you add the numbers 3.7, 7.289, and 4 together. 3.7 + 7.289 + 4 equals 14.989. The correct answer is 14.989 because it includes all decimal places from the sum of the numbers provided. Choice B (5.226) is incorrect as it doesn't account for the sum of the given numbers. Choice C (15.0) is incorrect as it rounds the sum to the nearest whole number, losing the decimal precision. Choice D (5.012) is incorrect as it doesn't reflect the correct sum of the decimal numbers.

Convert the percentage to a decimal: 38% =

  • A. 0.38
  • B. 3.8
  • C. 0.038
  • D. 38.0
Correct Answer: A

Rationale: To convert a percentage to a decimal, you divide by 100. In this case, 38% divided by 100 equals 0.38. Moving the decimal point two places to the left converts the percentage to a decimal. Choice B is incorrect because it incorrectly moves the decimal point one place to the left. Choice C is incorrect as it moves the decimal point three places to the left. Choice D is incorrect as it does not convert the percentage to a decimal.

A woman received a bottle of perfume as a present. The bottle contains ½ oz of perfume. How many milliliters is this?

  • A. 10 mL
  • B. 15 mL
  • C. 20 mL
  • D. 25 mL
Correct Answer: B

Rationale: To convert ounces to milliliters, we know that 1 ounce is approximately 30 mL. Therefore, 0.5 ounces would be half of that, which is 15 mL. So, 0.5 oz of perfume is equal to 15 mL. Choice A (10 mL), Choice C (20 mL), and Choice D (25 mL) are incorrect as they do not reflect the accurate conversion from ounces to milliliters.

What is the result of multiplying 7.2 by 0.34?

  • A. 14.12
  • B. 0.234
  • C. 7.64
  • D. 2.448
Correct Answer: D

Rationale: To find the result of multiplying 7.2 by 0.34, multiply these two numbers: 7.2 x 0.34 = 2.448. The correct answer is 2.448. Choice A, 14.12, is incorrect as it seems to be the sum of the two numbers. Choice B, 0.234, is incorrect as it is much smaller than the expected result. Choice C, 7.64, is incorrect as it is the result of adding the two numbers rather than multiplying them.

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