You review anatomy, chemistry, and scientific reasoning the way TEAS 7 reports the science line. Five of the 15 questions include the correct answer and rationale. The other ten keep answers in the study hub. Continue with the ATI TEAS 7 exam guide or more ATI TEAS 7 practice questions.
Five science questions with answers
Cover the key. Write the first action. Then open the rationale and name why the other choices fail.
Question 1
Simplify the following expression: 5 x 3 · 9 x 4
A. 5/12
B. 8/13
C. 20/27
D. 47/36
Show answer and rationale
Correct answer: A — 5/12
To simplify the expression 5 x 3 · 9 x 4, first perform the multiplications and divisions from left to right: 5 x 3 = 15 and 9 x 4 = 36. So, the expression becomes 15 · 36. When dividing fractions, multiply the first fraction by the reciprocal of the second fraction. Hence, 15 · 36 = 15/36. To simplify the fraction further, find the greatest common divisor, which is 3. Divide both the numerator and denominator by 3 to get the final result: 15/36 = 5/12. Therefore, the correct answer is A. Choices B, C, and D are incorrect because they do not represent the correct simplification of the given expression.
Question 2
In Mrs. McConnell's classroom, there are 5 students with hazel eyes and 2 students with green eyes out of a total of 30 students. What percentage of the students have either hazel or green eyes?
A. 0.23
B. 0.3
C. 0.47
D. 0.77
Show answer and rationale
Correct answer: A — 0.23
To calculate the percentage of students with either hazel or green eyes, add the number of students with hazel and green eyes (5 + 2 = 7) and divide by the total number of students (30): 7 · 30 ≈ 0.23 or 23%. The correct answer is A, 0.23, which represents 23% of the total students. Choice B, 0.3, is incorrect as it corresponds to 30%, which is higher than the total number of students. Choice C, 0.47, is incorrect as it represents 47%, which is also higher than the total number of students. Choice D, 0.77, is incorrect as it corresponds to 77%, which is much higher than the total number of students.
Question 3
Four people split a bill. The first person pays for 1/3, the second person pays for 1/4, and the third person pays for 1/6. What fraction of the bill does the fourth person pay?
A. 1/4
B. 1/6
C. 1/3
D. 1/12
Show answer and rationale
Correct answer: D — 1/12
To find out what fraction of the bill the fourth person pays, you first calculate the total fraction paid by the first three people: 1/3 + 1/4 + 1/6 = 4/12 + 3/12 + 2/12 = 9/12 = 3/4. This means that the first three people paid 3/4 of the bill. Therefore, the fourth person pays the remaining fraction: 1 - 3/4 = 1/4. So, the fourth person pays 1/4 of the bill. Choice A, 1/4, is incorrect because this is the total fraction paid by the first person. Choice B, 1/6, is incorrect as this is the fraction paid by the second person. Choice C, 1/3, is incorrect as this is the fraction paid by the third person.
Question 4
Which of the following is the greatest value?
A. 43 · 55
B. 7 · 5
C. 0.729
D. 73%
Show answer and rationale
Correct answer: B — 7 · 5
To determine the greatest value among the choices, you need to convert all options to a common format. In this case, converting fractions to decimals will help compare them. When 7 · 5 is calculated, it equals 1.4, which is greater than 0.729 (choice C) and 0.78 (choice A when rounded). The percentage 73% (choice D) is equivalent to 0.73, making 7 · 5 the largest value. Therefore, the correct answer is B. Choice A is smaller than B, as 43 · 55 equals approximately 0.78. Choice C is smaller than B, as 0.729 is less than 1.4. Choice D is smaller than B, as 73% is equal to 0.73, which is less than 1.4.
Question 5
When the sampling distribution of means is plotted, which of the following is true?
A. The distribution is approximately normal.
B. The distribution is positively skewed.
C. The distribution is negatively skewed.
D. There is no predictable shape to the distribution.
Show answer and rationale
Correct answer: A — The distribution is approximately normal.
When the sampling distribution of means is plotted, the distribution tends to be approximately normal, especially as the sample size increases. This phenomenon is described by the Central Limit Theorem, which states that the sampling distribution of the sample mean will be normally distributed regardless of the shape of the original population distribution as long as the sample size is sufficiently large. Choices B and C are incorrect because sampling distributions of means are not skewed. Choice D is incorrect because there is a predictable shape to the distribution, which is approximately normal.
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Question 6
A circle has an area of 121? in². Which of the following is the circumference of the circle in terms of pi (?)?
A. 11? in
B. 22? in
C. 44? in
D. 5.5? in
Correct answer:
To find the circumference of the circle, we first need to determine the radius. Given that the area of the circle is 121? in², we use the formula for the area of a circle (A = ?r²) to find the radius squared. So, r² = 121, which means the radius (r) is 11 in. The circumference of a circle is calculated using the formula 2?r. Substituting the radius value of 11 in, we get 2?(11) = 22? in. Therefore, the correct answer is 22? in. Choice A (11? in), Choice C (44? in), and Choice D (5.5? in) are incorrect because they do not correctly calculate the circumference based on the given area of the circle.
A rectangular field has an area of 1452 square feet. If the length is three times the width, what is the width of the field?
A. 22 feet
B. 44 feet
C. 242 feet
D. 1452 feet
Correct answer:
To find the width of the rectangular field, use the formula for the area of a rectangle: A = length width. Given that the length is three times the width, you have A = 3w w. Substituting the given area, 1452 = 3w^2. Solving for w, you get 484 = w^2. Taking the square root gives ±22, but since the width must be positive, the width of the field is 22 feet. Choice B, 44 feet, is incorrect because it represents the length, not the width. Choice C, 242 feet, is incorrect as it is not a factor of the area. Choice D, 1452 feet, is incorrect as it represents the total area of the field, not the width.
Bernard can make $80 per day. If he needs to make $300 and only works full days, how many days will this take?
A. 2
B. 3
C. 4
D. 5
Correct answer:
To find out how many days Bernard needs to work to make $300, we divide the total amount he needs by how much he makes per day: $300 / $80 = 3.75 days. Since Bernard can only work full days, he would need to work for 4 days to make $300. Therefore, the correct answer is 4 days. Choice A (2 days) is incorrect because it does not match the calculation based on his daily earnings. Choice B (3 days) is incorrect as the calculated result is not a whole number, so Bernard needs to work for more than 3 days. Choice D (5 days) is incorrect as it exceeds the calculated number of days needed to make $300.
Which of the following is listed in order from least to greatest?
A. -2 3/4, -2 7/8, -1/5, 2/5, 1/8
B. -1/5, 1/8, 2/5, -2 3/4, -2 7/8
C. -2 7/8, -2 3/4, -1/5, 1/8, 2/5
D. 1/8, 2/5, -1/5, -2 7/8, -2 3/4
Correct answer:
To determine the order from least to greatest, we can convert all fractions and mixed numbers to decimals or use a least common denominator. Converting the fractions in Choice C to decimals, we get -2.875, -2.75, -0.2, 0.125, and 0.4 when reading from left to right. Negative integers with larger absolute values are less than negative integers with smaller absolute values. Therefore, the correct answer is Choice C. Choices A, B, and D are incorrect because they do not present the numbers in the correct order from least to greatest when converted to decimals or compared using common denominators.
Arrange the following numbers from least to greatest: 7/3, 9/2, 10/9, 7/8
A. 10/9, 7/3, 9/2, 7/8
B. 9/2, 7/3, 10/9, 7/8
C. 7/3, 9/2, 10/9, 7/8
D. 7/8, 10/9, 7/3, 9/2
Correct answer:
To arrange the numbers from least to greatest, first convert them to decimals:
1. 7/3 is approximately 2.33
2. 9/2 equals 4.5
3. 10/9 is approximately 1.11
4. 7/8 equals 0.875
Now, arrange the decimals from least to greatest: 0.875 (7/8), 1.11 (10/9), 2.33 (7/3), 4.5 (9/2). Therefore, the correct order is 7/8, 10/9, 7/3, 9/2. Choice A is incorrect because it doesn't follow the correct order. Choice B is incorrect as it places 9/2 before 7/3, which is not the right arrangement. Choice C is incorrect as it places 7/3 before 9/2 and 10/9, which is incorrect. Thus, the correct answer is choice D.
This excerpt is an adaptation of Robert Louis Stevenson's The Strange Case of Dr. Jekyll and Mr. Hyde.
"Did you ever come across a prot of his one Hyde?" He asked. "Hyde?" repeated Lanyon. "No. Never heard of him. Since my time." That was the amount of information that the lawyer carried back with him to the great, dark bed on which he tossed to and from until the small hours of the morning began to grow large. It was a night of little ease to his toiling mind, toiling in mere darkness and besieged by questions. Six o'clock struck on the bells of the church that was so conveniently near to Mr. Utterson's dwelling, and still he was digging at the problem.
Hitherto it had touched him on the intellectual side alone; but now his imagination also was engaged, or rather enslaved; and as he lay and tossed in the gross darkness of the night in the curtained room, Mr. Enfield's tale went by before his mind in a scroll of lighted pictures. He would be aware of the great field of lamps in a nocturnal city; then of the figure of a man walking swiftly; then of a child running from the doctor's; and then these met, and that human Juggernaut trod the child down and passed on regardless of her screams. Or else he would see a room in a rich house, where his friend lay asleep, dreaming and smiling at his dreams; and then the door of that room would be opened, the curtains of the bed plucked apart, the sleeper recalled, and, lo! There would stand by his side a figure to whom power was given, and even at that dead hour he must rise and do its bidding.
The figure in these two phases haunted the lawyer all night; and if at any time he dozed over, it was but to see it glide more stealthily through sleeping houses, or move the more swiftly, and still the more smoothly, even to dizziness, through wider labyrinths of lamp lighted city, and at every street corner crush a child and leave her screaming. And still the figure had no face by which he might know it; even in his dreams it had no face, or one that baffled him and melted before his eyes; and thus there it was that there sprung up and grew apace in the lawyer's mind a singularly strong, almost an inordinate, curiosity to behold the features of the real Mr. Hyde.
If he could but once set eyes on him, he thought the mystery would lighten and perhaps roll altogether away, as was the habit of mysterious things when well examined. He might see a reason for his friend's strange preference or bondage, and even for the startling clauses of the will. And at least it would be a face worth seeing: the face of a man who was without bowels of mercy: a face which had but to show itself to raise up, in the mind of the unimpressionable Enfield, a spirit of enduring hatred.
A student is starting a research assignment on Japanese-American internment camps during World War II, but she is unsure of how to gather relevant resources. Which of the following would be the most helpful advice for the student?
A. Conduct a broad internet search to get a wide view of the subject.
B. Consult an American history textbook.
C. Find websites about Japanese-American culture encompassing various aspects such as fashion and politics.
D. Locate texts in the library related to World War II in America and look for references to internment camps in the index.
Correct answer:
The most effective way for the student to gather detailed and relevant resources for the research assignment on Japanese-American internment camps during World War II would be to search for specific references in library texts related to World War II. Option A suggesting a broad internet search might provide too much irrelevant information. Option B, consulting an American history textbook, may not offer in-depth coverage of internment camps specifically. Option C, focusing on Japanese culture aspects like fashion and politics, is not directly related to the research topic on internment camps.
A recycling company collects sorted materials from its clients. The materials are weighed and then processed for re-use. The chart shows the weights of various classes of materials that were collected by the company during a representative month. Which of the following statements is NOT supported by the data in the chart?
A. Paper products, including cardboard, make up a majority of the collected materials.
B. One quarter of the materials collected are made of glass.
C. More plastic is collected than cardboard.
D. Plastic and cardboard together represent a larger portion of the collected materials than glass bottles.
Correct answer:
The chart data does not support the statement that more plastic is collected than cardboard. Looking at the chart data, we can see that paper products, including cardboard, make up the majority of the collected materials. Glass accounts for one quarter of the materials collected. When we compare plastic and cardboard, we can see that cardboard weighs more than plastic. Therefore, the statement that more plastic is collected than cardboard is not supported by the data. Additionally, combining plastic and cardboard weights still does not exceed the weight of glass bottles according to the chart.
What is the least common multiple? What is the least common factor?
A. The smallest number that both numbers multiply into; the smallest number that divides evenly into both
B. The largest number that both numbers multiply into; the smallest number that divides evenly into both
C. The smallest number that both numbers divide into evenly; the smallest number that multiplies into both
D. The smallest number that both numbers divide into evenly; the smallest number that both multiply into
Correct answer:
The least common multiple is the smallest number that both numbers multiply into, which means it is the smallest number that both numbers can be evenly divided by without leaving a remainder. The least common factor, on the other hand, is the smallest number that divides both numbers without leaving a remainder. Therefore, choice A is correct as it accurately defines the least common multiple and factor. Choices B, C, and D are incorrect because they provide inaccurate definitions or mix up the concepts of multiplication and division in relation to finding the least common multiple and factor.
Starting in 1856, Alfred, Lord Tennyson began publishing his compilation of Arthurian legends that became known as Idylls of the King. these poems were based on the earlier medieval collection Le More of Arthur, by Sir Thomas Malory, which dated to the middle of the 15th century. Malory's work, which is believed to be largely a translation of older French stories, was written in prose style. It combine date earlier tales into a single grouping for English readers. As the title suggests, Malory's focus was largely on the epic nature of Arthur's life. Malory also included chapters on knights such as Lancelot and Gareth, and he discussed the relationships between Tristan and Isolde, and Lancelot and Guinevere. Instead of embracing the romance angle, however, Malory focused more on the moral elements within these stories. Tennyson, though heavily influenced by Malory, took a different approach to the Arthurian stories. For one, he wrote them in poetry form, not prose. Additionally, Tennyson, as a Victorian poet, was more interested in the romantic qualities of the stories, and included the distinct elements of nature and elegy. Idylls of the King has a softer focus overall. For Instance, in Malory's work, Guinevere faces execution for her adultery, and is only spared when Lancelot rides in to rescue her. In Tennyson's work, Arthur chooses to forgive Guinevere, and she chooses to spend the rest of her days doing good works in a convent. some literary scholars believe that Tennyson was writing an allegory about social problems and the need for social justice that existed during Tennyson's own time. Charles Dickens is remembered for doing the same thing in his novels about the abuses of lower-class children in Victorian England.
Which of the following sentences distracts the reader from the main focus of the passage?
A. Malory's work, which is believed to be largely a translation of older French stories, was written in prose style.
B. Instead of embracing the romance angle, however, Malory focused more on the moral elements within these stories.
C. In Tennyson's work, Arthur chooses to forgive Guinevere, and she chooses to spend the rest of her days doing good works in a convent.
D. Charles Dickens is remembered for doing the same thing in his novels about the abuses of lower-class children in Victorian England.
Correct answer:
The focus of the passage is on Malory and Tennyson and their interpretations of the Arthurian legends. The mention of Charles Dickens in choice D is irrelevant and distracts the reader from the main discussion. While the other choices discuss Malory's prose style, his focus on moral elements, and Tennyson's approach to the Arthurian stories, choice D brings in a comparison to Charles Dickens and his novels about lower-class children in Victorian England. This mention of Dickens does not directly relate to the main theme of the passage, making it the correct answer as the distracting sentence.
What is the overall median of Dwayne's current scores: 78, 92, 83, 97?
A. 19
B. 85
C. 83
D. 87.5
Correct answer:
To find the median of a set of numbers, first arrange the scores in ascending order: 78, 83, 92, 97. Since there is an even number of scores, we find the median by taking the average of the two middle values. In this case, the middle values are 83 and 92. Calculating (83 + 92) / 2 = 85, we determine that the overall median of Dwayne's scores is 85. Choice A (19) is incorrect as it does not correspond to any value in the given set of scores. Choice C (83) is the median of the original set but not the overall median once arranged. Choice D (87.5) is the average of all scores but not the median.
ATI TEAS 7 science practice questions, set 79 for nursing students in the United States. Fifteen items. Five include answers and rationales in American English.
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