This document contains detailed answer explanations to every question from the December 10, 2011 ACT, Form 70A. Many Mathematics and English explanations also link to content pages that explain the relevant grammatical and mathematical concepts in greater detail. Please note that this document contains the explanations only, and does not provide the test questions themselves; it is a tool intended for use with a copy of your test that you purchased from the ACT via the Test Information Release (TIR). The following are sample explanations:
1) B) Answer choice A is incorrect because it is not even a word. C is incorrect for the same reason. B is correct over D because “awakened” is the proper past participle of the verb to awaken, while “awaken” is merely the infinitive of the verb. The past participle is needed in this context because the verb is preceded by the auxiliary verb “was.” See verb tense.
1) E) 20% is equal to .2 when written as a decimal, and the word “of” indicates multiplication, so you can solve this problem as follows: .2 • $16.00 = $3.20. See percentages and equation building.
1) C) The passage primarily discusses the links to the past that junk can provide. This idea is first illustrated by the anecdote of the man who pays a lot of money for the radio because it reminds him of one from his childhood. The idea is then further explored by the narrator in the remainder of the passage and is most directly summarized in lines 50-59 and lines 69-77. Answer choice A is incorrect because the passage is not primarily concerned with what people pay for junk; although it does mention what people will pay for junk, it does so only to show how powerful a tie junk can have to one’s past. B is incorrect because the intent of the story is not primarily to draw a moral. D is incorrect because it takes the nostalgia for the past that is described in the passage way too far.
1) C) Hypothesis 2 argues that a cocklebur plant requires at least 10 hours of continuous darkness per day in order to flower, and C is the only answer choice that meets this requirement. Continue reading
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