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Manhattan
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Last year, Company X made q dollars in profit. Half of the profit went to the company's founder. The rest was split evenly among his four other partners. In terms of q, how much did each of the other partners receive?
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Manhattan
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In a certain fishery that contains only speckled and rainbow trout, the number of male speckled trout is 45 more than twice the number of female speckled trout. 645 total speckled trout live in the fishery. If the ratio of female speckled trout to male rainbow trout is 4:3 and there are 1000 total trout in the fishery, how many female rainbow trout are there?
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Manhattan
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Hoping to alleviate some of the financial burdens of a growing population, property taxes last year were raised by an eleven percent increase by the county government.
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Manhattan
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Used until the end of the Second World War, the German army employed the U-boat to attack both military or civilian watercraft.
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Manhattan
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According to industry analysts, the recent growth in the number of hybrid motor vehicles in major metropolitan areas are likely to accelerate in the future.
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Manhattan
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If 3x – 3y = 12z, what is the value of x?(1) 4z = 2 + y(2) 4z = 6 – y
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Manhattan
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If x and y each represent a single digit, does the number 8.3xy round to 8.3 when it is rounded to the nearest tenth?(1) x = 5
(2) y = 9
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Scientific advances in the twentieth century have allowed researchers to study the chemical activities taking place in the sleeping human brain. In the 1970s, researcher Barry Jacobs drew on these advances to propose that a shared neurochemical basis in the neurotransmitters serotonin and norepinephrine accounts for the observable similarities between dreams and hallucinations. To test Jacobs' theory, researchers attempted to elucidate the role of serotonin and norepinephrine in the normal sleep cycle and the effect of hallucinogenic drugs on these neurotransmitters.
Serotonin appears important for managing sleep, mood, and appetite, among other functions, while norepinephrine facilitates alertness and mental focus. Both neurotransmitters are discharged in high quantities only during waking states. At the onset of sleep, the neurons that release these neurotransmitters become less active, allowing the brain to enter the three non-rapid eye movement (non-REM) stages of sleep. The non-REM stages typically are not associated with normal dreaming, though parasomnias, such as sleepwalking and confusional arousals, are most common during stage 3. When the brain is ready to enter the fourth stage, REM, which is strongly associated with dreaming, the levels of these two chemicals drop virtually to zero. The Jacobs hypothesis held that the absence of norepinephrine was required to enable the brain to remain asleep, while the absence of serotonin was necessary to allow dreaming to occur.Lysergic acid diethylamide, or LSD, is a semi-synthetic psychedelic drug which causes significant alteration of the senses; at doses higher than 20 micrograms, it can have a hallucinogenic effect. LSD mimics serotonin well enough to be able to bind at most of the neurotransmitter's receptor sites, largely inhibiting normal transmission. In addition, the drug causes the Locus coeruleus, a cluster of neurons containing norepinephrine, to greatly accelerate activity. If the drug stimulates norepinephrine, thereby precluding sleep, and inhibits serotonin, creating a necessary condition for dreaming, then the resulting hallucinations could merely be “dreaming while awake.” The research thus far is promising but inconclusive; future scientific advances should allow this theory to be tested more rigorously.
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Manhattan
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According to the passage, which of the following is true of the drug lysergic acid diethlyamide?
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Manhattan
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Because of a rare type of fungus that killed off many cacao trees in Brazil, there was an unusually meager harvest of cacao beans this year. The wholesale price of cocoa solids and cocoa butter has increased significantly and is unlikely to fall in the foreseeable future. As a result, the retail price of chocolate is certain to increase within six months.Which of the following, if true, most seriously weakens the argument above?
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Manhattan
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In the United States, about $5,200 per person per year is spent on health care, while in Britain the amount is about half that. A recent study indicated that middle-aged white Americans have a significantly higher rate of diabetes and heart disease than do middle-aged white Britons. Even after eliminating from the study the lifestyle differences of diet, exercise, smoking, and drinking, the data showed that the Americans have poorer health than their British counterparts.The statements above, if true, best support which of the following assertions?
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Manhattan
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Ethanol is a derivative of corn and other grains. When burned as fuel, it emits significantly lower levels of carbon monoxide, a major atmospheric pollutant, than does gasoline. For that reason, environmentalists claim that ethanol is a better source of energy than gasoline.Which of the following, if true, most strongly supports the environmentalists' claim?
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Manhattan
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The Ergonomic Society conducted a study that indicated that many people develop severe back problems during adulthood, and that virtually all such people who received chiropractic treatment showed great improvement. Therefore, in order to minimize the proportion of the population that suffers from back pain, the Ergonomic Society recommended that chiropractic treatment be directed toward those adults who suffer from severe back problems.
Which of the following is an assumption on which the argument depends?
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Manhattan
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Studies have demonstrated that people who keep daily diet records are far more successful at losing weight than people who don't keep track of what they eat. Researchers believe that this occurs because people who don't record their diets eat more calories than they intend to consume. One study followed a group of patients who reported that they could not lose weight when consuming only 1,200 calories a day. The study found that the group consumed, on average, 47% more calories than it claimed and exercised 51% less. In contrast, when dieters record what they eat, their actual consumption more closely matches their reported consumption.The two boldface portions in the argument above are best described by which of the following statements?
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For years, employers in the United States have counted on a steady flow of laborers from Mexico willing to accept low-skilled, low paying jobs. These workers, many of whom leave economically depressed villages in the Mexican interior, are often willing to work for wages well below both the U.S. minimum wage and the poverty line. A dramatic demographic shift currently taking place in Mexico, however, may alter the trend: the stream of workers migrating from Mexico to the United States might one day greatly diminish if not cease.As a result of a decades-long family planning campaign, population growth, which had reached a peak of 3.5% in 1965, declined to just 1% by 2005. On average, Mexican women today are giving birth to fewer than half as many children as did their mothers. The campaign, organized around the slogan that “the small family lives better,” saw the Mexican government establish family-planning clinics and offer free contraception. For nearly three decades, the government's message concerning population has not wavered. In fact, the Mexican Senate recently voted to expand public school sex education programs to kindergarten.For two primary reasons, Mexico's new demographics could greatly impact the number of Mexicans seeking work in the U.S. First, smaller families directly limit the pool of potential migrants. Second, the slowing of Mexico's population growth has fostered hope that Mexico will develop a healthy middle class. Though the former of these factors is all but assured, the growth of a healthy middle class is far from a foregone conclusion. The critical challenge for Mexico is what it does with the next 20 years. Developing a stable middle class will require investments in education, job training, and infrastructure, as well as a social-security system to protect its aging population. Businesses will need to create more semi-skilled and skilled jobs in construction, manufacturing, and technology, as well as the associated “white collar” jobs that too many Mexican manufacturers currently locate outside of the country's borders. It remains to be seen whether government and industry will answer these challenges as vigorously as the family-planning campaign answered the problem of population growth.
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Manhattan
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The primary purpose of the passage is to
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Manhattan
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Unbiased third-party "clean" teams can protect sensitive data while assessing the business rationale of a deal, helping to develop an integrated business plan, and supporting negotiations.
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Manhattan
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According to the passage, which of the following roles is played by an odorant binding protein?
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Manhattan
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Parent: The city education department is unable to distinguish between annoyances and important problems. For instance, prohibiting students from having cell phones is an overreaction. If a student uses one and thus interferes with instruction, confiscate it. All in all, we need educational leadership that can solve problems, not create them.
Which of the following is an assumption made by the parent?
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Manhattan
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The division of the day into twenty-four hours, rather than into some other number of periods, are essentially random, and most people can scarcely imagine dividing the day in any other way.
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