which of the following is not a way to write 40 percent of n
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ATI TEAS 7

TEAS Math Practice Test

1. Which of the following is NOT a way to write 40 percent of N?

Correct answer: B

Rationale: The correct answer is B: N/40. To find 40% of N, you multiply N by 0.4, so 0.4N is the correct representation. Choice B, N/40, is incorrect because dividing N by 40 does not give you 40% of N. Choice C, 2/5 N, is equivalent to 40% of N since 2/5 is the same as 40% when simplified. Choice D, 40N/100, is also correct since 40% can be represented as 40/100, which simplifies to 0.4, making 40N/100 another valid way to write 40% of N.

2. Muscle tissue is responsible for movement. Which type of muscle tissue is found in the heart?

Correct answer: C

Rationale: Cardiac muscle is the type of muscle tissue found in the heart. Unlike skeletal muscle and smooth muscle, cardiac muscle is striated and involuntary, meaning it contracts without conscious control. It forms the majority of the heart's structure and is essential for its rhythmic contraction to pump blood throughout the body. Skeletal muscle is attached to bones and responsible for voluntary movements, while smooth muscle is found in organs and blood vessels, controlling various involuntary functions like digestion and blood flow. Therefore, choices A (Skeletal muscle) and B (Smooth muscle) are incorrect as they are not the types of muscle tissue found in the heart.

3. Which part of the digestive system is responsible for absorbing nutrients?

Correct answer: C

Rationale: The small intestine is the correct answer because it is the primary site for nutrient absorption in the digestive system. It contains specialized structures such as villi and microvilli that maximize the absorption of nutrients from digested food. The esophagus is responsible for transporting food from the mouth to the stomach; the stomach primarily aids in digestion by secreting enzymes and acids; and the large intestine mainly absorbs water and electrolytes from the remaining indigestible food matter. Therefore, the small intestine plays a crucial role in absorbing essential nutrients for the body's functions, making it the correct choice in this context.

4. In the sentence 'Singing is my favorite activity,' how does 'Singing' function in terms of parts of speech?

Correct answer: B

Rationale: In the sentence provided, 'Singing' is a gerund, which is a verb form ending in -ing that functions as a noun. It represents the action of singing, but in this context, it acts as the subject of the sentence. Therefore, 'Noun' is the correct answer. 'Verb' (choice A) is incorrect because while gerunds are verb forms, in this sentence, 'Singing' is not acting as a verb. 'Adjective' (choice C) is incorrect as it describes a noun, which is not the case here. 'Pronoun' (choice D) is also incorrect as 'Singing' does not replace a noun in this sentence.

5. Which sentence uses correct punctuation?

Correct answer: D

Rationale: The correct answer is sentence D: 'I cooked, so I could eat dinner.' This sentence uses a comma correctly to separate two independent clauses, 'I cooked,' and 'so I could eat dinner.' Choice A is incorrect as it lacks punctuation to separate the clauses properly. Choice B incorrectly uses a comma after 'so,' disrupting the flow of the sentence. Choice C incorrectly places a comma after 'I,' which is not needed in this context.

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