TEAS Test Math Prep

Correct Answer: A

Rationale: To calculate relative error, we use the formula: (|Measured Value - True Value| / True Value) * 100%. In this case, the measured width is 36 inches and the true width is 75 inches. So, the relative error = (|36 - 75| / 75) * 100% = (39 / 75) * 100% = 52%. Therefore, the correct answer is A: 0.52%. Choice B (0.01%), C (0.99%), and D (0.10%) are incorrect as they do not correspond to the calculated relative error of 52% in this scenario.

Correct Answer: C

Rationale: To reach $300, Bernard needs to work for $300 / $80 = 3.75 days. Since he can only work full days, he needs to work for 4 days to make at least $300. Thus, the correct answer is C. Option A (2 days), B (3 days), and D (5 days) are incorrect as they do not meet the minimum requirement of $300.

Correct Answer: B

Rationale: The correct answer is B (1.07548) because it has the largest value among the given numbers. To determine this, we compare the numbers using their place values. The number with the largest value is the one with the highest digit in the leftmost place. In this case, 1.07548 has the largest value as it has 1 in the ones place, which is greater than 1 in the tenths place in A and C, and the highest value in the thousandths place compared to D. Choices A, C, and D have smaller values because their leftmost digit is smaller than the corresponding digit in B.

Correct Answer: A

Rationale: Step 1: Compare the whole numbers. 0.45 > 0.3 > 0.313 > 0.096 Step 2: Compare the decimal parts if necessary. 0.45 has the largest decimal part, making it the largest number overall. Summary: - A is correct as 0.45 is the largest number. - B, C, and D are incorrect as they are smaller than 0.45, either in whole or decimal parts.

Correct Answer: A

Rationale: To convert miles to kilometers, we use the conversion factor 1 mile = 1.60934 km. Therefore, to convert 67 miles to kilometers, we multiply 67 miles by 1.60934 km/mile = 107.67178 km. Rounding to three significant digits gives us 107 km, which is the correct answer. Choice B (106 km) is incorrect as it does not account for the correct rounding of the conversion. Choice C (33 km) is incorrect as it significantly underestimates the conversion. Choice D (85 km) is also incorrect as it does not reflect the accurate conversion from miles to kilometers.