how will be written as a percent
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ATI TEAS 7

TEAS Test Sample Math Questions

1. How should 0.80 be written as a percent?

Correct answer: D

Rationale: To convert a decimal to a percent, move the decimal point two places to the right. Therefore, 0.80 written as a percent is 80%. Choice A is incorrect as it represents 40%. Choice B is incorrect as it represents 125%. Choice C is incorrect as it represents 90%.

2. How do you convert pounds to kg and kg to pounds?

Correct answer: A

Rationale: To convert pounds to kg, you need to divide by 2.2, not multiply. Similarly, to convert kg to pounds, you should multiply by 2.2. Therefore, choice A is correct. Choices B, C, and D are incorrect because they provide incorrect conversion factors for pounds and kg, leading to inaccurate results.

3. Simplify (x^2 - y^2) / (x - y)

Correct answer: A

Rationale: The expression ๐‘ฅ^2 - ๐‘ฆ^2 is a difference of squares, which follows the identity: ๐‘ฅ^2 - ๐‘ฆ^2 = (๐‘ฅ + ๐‘ฆ)(๐‘ฅ - ๐‘ฆ). Therefore, the given expression becomes: (๐‘ฅ^2 - ๐‘ฆ^2) / (๐‘ฅ - ๐‘ฆ) = (๐‘ฅ + ๐‘ฆ)(๐‘ฅ - ๐‘ฆ) / (๐‘ฅ - ๐‘ฆ). Since (๐‘ฅ - ๐‘ฆ) appears in both the numerator and the denominator, they cancel each other out, leaving ๐‘ฅ + ๐‘ฆ. Thus, the simplified form of (๐‘ฅ^2 - ๐‘ฆ^2) / (๐‘ฅ - ๐‘ฆ) is ๐‘ฅ + ๐‘ฆ. Therefore, the correct answer is A (x + y). Option B (x - y) is incorrect as it does not result from simplifying the given expression. Option C (1) is incorrect as it does not account for the variables x and y present in the expression. Option D ((x + y)/(x - y)) is incorrect as it presents the simplified form in a different format than the correct answer.

4. 67 miles is equivalent to how many kilometers to three significant digits?

Correct answer: A

Rationale: To convert miles to kilometers, the conversion factor is 1 mile โ‰ˆ 1.609 kilometers. Therefore, to convert 67 miles to kilometers, you would multiply: 67 miles ร— 1.609 km/mile = 107.703 km. When rounded to three significant digits, this gives 108 km. Therefore, 67 miles is approximately 108 kilometers. Choice A is correct because it is the closest rounded value to three significant digits. Choices B, C, and D are incorrect as they do not match the calculated conversion of 108 km.

5. Veronica has to create the holiday schedule for the neonatal unit at her hospital. 35% of her staff will be unavailable during the holidays, and of the remaining staff, only 20% are certified to work in the neonatal unit. What percentage of the total staff is certified and available to work?

Correct answer: B

Rationale: The correct answer is 13%. To find the percentage of the total staff that is certified and available to work, we first calculate the percentage of staff available, which is 100% - 35% = 65%. Then, we find the percentage of the available staff that is certified, which is 20% of 65% = 0.20 ร— 0.65 = 0.13, or 13%.

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