gordon purchased a television that was 30 off its original price of 472 what was the sale price

ATI TEAS 7

Math Practice TEAS Test

1. Gordon purchased a television that was 30% off its original price of $472. What was the sale price?

A. 141.60
B. 225.70
C. 305.30
D. 330.40

Correct answer: D

Rationale: To find the sale price after a 30% discount, you first calculate the discount amount which is 30% of $472. 30% of $472 is $141.60. To find the sale price, you subtract the discount amount from the original price: $472 - $141.60 = $330.40. Therefore, the sale price of the television after a 30% discount would be $330.40. Choices A, B, and C are incorrect as they do not accurately reflect the calculated sale price after the discount.

2. What is the function of the adrenal glands?

A. To regulate metabolism
B. To produce bile
C. To produce red blood cells
D. To regulate blood glucose

Correct answer: D

Rationale: The correct answer is D: To regulate blood glucose. The adrenal glands play a crucial role in regulating blood glucose levels and the body's response to stress. Choice A, 'To regulate metabolism,' is incorrect as the primary role of the adrenal glands is not directly related to metabolism regulation. Choice B, 'To produce bile,' is incorrect because bile is produced by the liver, not the adrenal glands. Choice C, 'To produce red blood cells,' is also incorrect as the production of red blood cells primarily occurs in the bone marrow, not the adrenal glands.

3. How does kinetic energy change when the velocity of an object is doubled?

A. Kinetic energy is halved
B. Kinetic energy quadruples
C. Kinetic energy doubles
D. Kinetic energy remains the same

Correct answer: B

Rationale: Kinetic energy is directly proportional to the square of the velocity of an object according to the kinetic energy formula (KE = 0.5 * m * v^2). When the velocity is doubled, the kinetic energy increases by a factor of 2^2 = 4. Therefore, the kinetic energy quadruples when the velocity of an object is doubled. Choice A is incorrect because halving the kinetic energy would be the result if the velocity was halved, not doubled. Choice C is incorrect because doubling the velocity would result in a fourfold increase in kinetic energy, not just a double. Choice D is incorrect because kinetic energy is directly related to the velocity of an object, so if the velocity changes, the kinetic energy changes accordingly.

4. In a single displacement reaction, one element takes the place of another element in a compound. Which of the following is an example?

A. 2H2 + O2 -> 2H2O
B. Zn + 2HCl -> ZnCl2 + H2
C. CaCO3 -> CaO + CO2
D. CH4 + 2O2 -> CO2 + 2H2O

Correct answer: B

Rationale: Option B demonstrates a single displacement reaction where zinc (Zn) displaces hydrogen (H) in hydrochloric acid (HCl) to produce zinc chloride (ZnCl2) and hydrogen gas (H2). This reaction exemplifies the concept of one element (Zn) replacing another element (H) in a compound (HCl), which is characteristic of single displacement reactions. Choices A, C, and D do not involve a single element displacing another in a compound, making them incorrect. In choice A, hydrogen and oxygen combine to form water, which is not a single displacement reaction. In choice C, calcium carbonate decomposes into calcium oxide and carbon dioxide, not involving displacement of elements. In choice D, methane reacts with oxygen to form carbon dioxide and water, which is a combustion reaction, not a single displacement reaction.

5. Which term describes the most likely structure of an essay about the similarities and differences between World War I and World War II?

A. Technical
B. Expository
C. Cause/effect
D. Compare/contrast

Correct answer: D

Rationale: The correct answer is 'Compare/contrast.' This structure is specifically designed to analyze and highlight the similarities and differences between two subjects, making it the most appropriate choice for an essay discussing the similarities and differences between World War I and World War II. Choice A, 'Technical,' typically involves detailed, specialized information rather than comparison. Choice B, 'Expository,' focuses on explaining or describing a topic without necessarily comparing or contrasting different subjects. Choice C, 'Cause/effect,' is used to examine the causes and consequences of events, which is different from directly comparing and contrasting two historical events like World War I and World War II.