SAT BB solutions for M, CR, and W!

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<p>I just took a practice test and scored it. Got a 2210 D: Usually, I'm able to correctly resolve the problems I missed since most were stupid mistakes, but for this particular test, there were quite a few that I couldn't solve in all three sections: basically 3 from both M and W and 1 from CR.</p>

<p>If you can help clarify some issues with either one section or all three sections, any help would be greatly appreciated :)</p>

<p>BB 1st Edition Test 6</p>

<p>Math:
Section 3:
18. The average of the test scores of a class of p students is 70, and the average of the test scores of a class of n students is 92. When the scores of both classes are combined, the average score is 86. What is the value of p/n?
(Grid-in problem) Answer:3/8 or .375</p>

<p>Section 7:
16. If y = (5x^3)/z, what happens to the value of y when both x and z are doubled?
A. y is not changed
B. y is halved
C. y is doubled
D. Y is tripled
E. y is multiplied by 4</p>

<p>I tried to solve this by several methods but I keep getting either A or C.
Answer: E</p>

<p>Section 9:
12. Figure problem. Basically it looks like an acute triangle with a line that goes through the middle of the two midpoints of the legs of the triangle. But the figure is not drawn to scale. If you have the book, it's on page 746</p>

<p>Points P, A, and B are equally spaced on line l and points P, Q, and R are equally spaced on line m. If PB =4, PR = 6, and AQ=4, what is the perimeter of the uadrilateral QABR?
A. 13
B. 14
C. 15
D. 16
E. 17</p>

<p>Writing:
Section 4:
18. The survey (A showed that) most shoppers who drive prefer the mall (B more than) downtown stores (C simply because) finding parking is (D less difficult).
Answer: B
Is the problem for B idiomatic phrasing, meaning it should be something like "prefer the mall OVER the downtown stores" instead of more than?</p>

<p>Section 10:
12. Many changes occured while she was president of [college, and they increased its educational quality as well as effectiveness].
I put D: college; these changes increased its educational quality and effectiveness.
Answer E: college; these changes increased both the educational quality and effectiveness of the college.
D and E say the same thing but to me D was more succinct whereas E seemed to drone on and on compared to D.</p>

<p>14.High school graduates usually do not end up earning as much income as college graudates [do, this being why so many high school students] go on to pursue college degrees.
I put E: do, explaining why so many high school students
Answer C: do; this fact explains why so many high school students</p>

<p>The last two writing questions seem to contradict what I have been taught in my prep class that if you're down to two choices that are both grammatically correct then choose the one that is more succinct or the active sentence over the passive sentence. To me, the last two writing questions with the two choices I put for both seem grammatically correct yet the answer was, both times, the longer and more complex of the two... unless I'm missing something obvious?</p>

<p>Finally CR: My particular question pertains to a sentence of the passage but if you want to look at the whole passage, it is on page 740.</p>

<p>Section 8:
"From the parental burrow, Leadville seemed so far away it was only half real. Unwrapping her apple-cheeked son after a sleigh ride down the lane, she had difficulty in believing she had ever lived anywhere but here in Milton."
7. In line 1, THE PHRASE "parental burrow" suggests:
A. a lack of luxurious accommodations
B. an atmosphere of peaceful security
C. the work required to sustain a home
D. a lack of interest and stimulation
E. the loss of privacy
Answer: B
I put C because it seemed the best fit for the question. I can see where the answer key is getting B but I would like an alternate reason or someone else to clarify the reason why the answer is B.</p>

<p>Thank you!</p>

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<p>bump anyone?</p>

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<p>[Welcome</a> to the Official SAT Study Guide Book Owner’s Area](<a href=“College Board - SAT, AP, College Search and Admission Tools”>SAT Study Guide – SAT Suite | College Board)</p>

<p>Choose 2nd edition and lookup 8th test. They are same.</p>

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<p>Section 7:
16. If y = (5x^3)/z, what happens to the value of y when both x and z are doubled?
You can do this by plugging in numbers. Although most books say avoid plugging in 1, in this case plugging in 1 for both x and z should work, since the result should be true for any nonzero x and z.</p>

<p>Plug in x =1 and z = 1. Then y original = 5.
Now double both x and z. So plug in 2 for both x and z. Then y final = 20. So y is multiplied by 4.
Answer: E</p>

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<p>Section 9:
12. Figure problem. Basically it looks like an acute triangle with a line that goes through the middle of the two midpoints of the legs of the triangle. But the figure is not drawn to scale. If you have the book, it’s on page 746</p>

<p>Points P, A, and B are equally spaced on line l and points P, Q, and R are equally spaced on line m. If PB =4, PR = 6, and AQ=4, what is the perimeter of the uadrilateral QABR?
A. 13
B. 14
C. 15
D. 16
E. 17
First, fill in the numbers onto the figure. Then make marks for congruent segments PA and AB as well as the pair PQ and QR. AQ joins the midpoint of two sides of a triangle. By the midpoint theorem from geometry, AQ is parallel to BR and is half as long as BR. Since AQ = 4, BR = 8.
So the perimeter of QABR = AB + BR + QR + AQ = 2 + 8 + 3 + 4 = 17
Answer: E</p>

6

<p>Section 4
18. The survey (A showed that) most shoppers who drive prefer the mall (B more than) downtown stores (C simply because) finding parking is (D less difficult).
Answer: B
Is the problem for B idiomatic phrasing, meaning it should be something like “prefer the mall OVER the downtown stores” instead of more than?</p>

<p>The correct idiom is prefer “to”
[prefer</a> - Idioms - by the Free Dictionary, Thesaurus and Encyclopedia.](<a href=“Prefer]prefer - Idioms by The Free Dictionary”>Prefer - Idioms by The Free Dictionary)
Answer: B</p>

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<p>Section 10:
12. Many changes occurred while she was president of [college, and they increased its educational quality as well as effectiveness].
I put D: college; these changes increased its educational quality and effectiveness.
Answer E: college; these changes increased both the educational quality and effectiveness of the college.
D and E say the same thing but to me D was more succinct whereas E seemed to drone on and on compared to D.</p>

<p>Be especially careful when you see “it” or “its” in the Writing section. If “it” does not have a clear antecedent or could have more than one antecedent, then “it” is not acceptable. E is worded longer but without any ambiguity.
Answer: E</p>

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<p>Section 10
14.High school graduates usually do not end up earning as much income as college graudates [do, this being why so many high school students] go on to pursue college degrees.</p>

<p>The problem with E is that the participial phrase, “explaining why so many students go on to pursue college degrees”, must modify a noun in the same sentence. Which noun in the sentence could possibly be “explaining”? </p>

<p>Answer: C</p>

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<p>The usual definition “burrow” is a hole dug in the ground by an animal for shelter. The secondary definition according to dictionary.com is “a place of retreat; shelter or refuge.”</p>

<p>The word “placid” in line 5 supports “peaceful” and “burrow” is a place of security. So B is well-supported by the context.</p>

<p>C. is not supported because “work required to sustain a home” is not mentioned nor implied.</p>

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<p>Section 9, problem 12 can also be done using similar triangles. You have a common angle. You also have the two sides that include the angle having a common proportion of 1:2 = short:long. By SAS, the two triangles are similar.</p>

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<p>Wow! Thanks a lot knowthestuff! Your explanations were really concise, comprehensible, and extremely helpful. </p>

<p>Just a few questions though:
Regarding your fourth post from the bottom about the WR question section 10 #12:
Doesn’t the possessive “its” have a clear antecedent: college? It cannot refer to the president because she is human and it cannot refer to the changes because those are plural. I thought it was very clear while reading it, which alas brought the confusion.</p>

<p>And second your first post for the Math section section 7 #16:
I know we can plug in numbers for variables to help solve problems. I usually do this to verify the answers for these types of problems but if I can’t solve the problem that’s what I do to solve it. I thought that each different variable represents a different number. By your solution, does this mean that for all future similar problems, I can plug in the same numbers for the different variables unless explicitly stated otherwise?</p>

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<p>Here’s a tip. Type a few words of your problem and google search THIS site. Most of those problems have been solved several times in the past. You should find a few solutions for each problem, especially for math.</p>

<p>It might help you avoid typing long posts.</p>

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<p>Here is an example of the above for the first question</p>

<p><a href=“The average of the test scores of a class of p students is 70, and the average of the test scores site:talk.collegeconfidential.com[/url] - Google Search”>The average of the test scores of a class of p students is 70, and the average of the test scores site:talk.collegeconfidential.com - Google Search;

<p>Enjoy!</p>

14

<p>In D, “it” could possibly refer to “effectiveness”, even though that may not “sound” like what the writer intends to convey. You need to eliminate all possible grammatical ambiguities.</p>

<p>For the method of plugging in numbers, generally speaking, you should avoid plugging in 0, 1, numbers in the original question , or equal numbers. In this case, plugging in 1 happens to reveal the correct answer.</p>

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<p>I know you’re getting a lot of responses, but if you need it illustrated more, Khan Academy does SAT prep based on the blue book- he just works through each of the problems really well.</p>