Sat practice Test #8 Answer Explanations
Yüklə 0,72 Mb. Pdf görüntüsü
|
- Bu səhifədəki naviqasiya:
- Choice B is correct.
- Choice C is correct.
|
Choice C is correct. Due to the shape of the glass, if the water is
poured at a constant rate, the height of the water level will increase faster initially, where the diameter of the glass is smaller, and increase more slowly later, as the diameter of the glass increases. Choice C is the only graph that shows this behavior: it is steeper initially and then gets less steep. Choice A is incorrect since it shows the height of the water level increasing at a constant rate over time. Choice B is incorrect since it shows the height of the water level increasing slowly at first and faster later. Choice D is incorrect since it shows the height of the water level staying constant even as water is being poured into the glass. QUESTION 11 Choice B is correct. It is given that the volume of the glass is approximately 16 fluid ounces. If Jenny has 1 gallon of water, which is 128 fluid ounces, she could fill the glass 128 _ 16 = 8 times. Choice A is incorrect because Jenny would need 16 × 16 fluid ounces = 256 fluid ounces, or 2 gallons, of water to fill the glass 16 times. Choice C is incorrect because Jenny would need only 4 × 16 fluid ounces = 64 fluid ounces of water to fill the glass 4 times. Choice D is incorrect because Jenny would need only 3 × 16 fluid ounces = 48 fluid ounces to fill the glass 3 times. QUESTION 12 Choice C is correct. Since Roberto sells only two types of policies and he didn’t meet his goal of selling at least 57 policies, the sum of x, the number of $50,000 policies, and y, the number of $100,000 policies, must be less than 57. Symbolically, that is x + y < 57. The total value, in dollars, from selling x number of $50,000 policies is 50,000x. The total value, in dollars, from selling y number of $100,000 policies is 100,000y. Since the total value of the policies he sold was over $3,000,000, it follows that 50,000x + 100,000y > 3,000,000. Only choice C has both correct inequalities. Choice A is incorrect because the total value, in dollars, of the policies Roberto sold was greater than, not less than, 3,000,000. Choice B is incorrect because Roberto didn’t meet his goal, so x + y should be less than, not greater than, 57. Choice D is incorrect because both inequalities misrepresent the situation. QUESTION 13 Yüklə 0,72 Mb. Dostları ilə paylaş:
|