a rectangular field has an area of 1452 square feet if the length is three times the width which of the following is the width of the field
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ATI TEAS 7

TEAS Exam Math Practice

1. 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?

Correct answer: A

Rationale: To find the width of the rectangular field, use the formula for the area of a rectangle: A = length Γ— width. Given that the length is three times the width, you have A = 3w Γ— w. Substituting the given area, 1452 = 3w^2. Solving for w, you get 484 = w^2. Taking the square root gives Β±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.

2. Simplify the following expression: 1.034 + 0.275 - 1.294

Correct answer: A

Rationale: To simplify the expression, begin by adding 1.034 and 0.275, which equals 1.309. Then, subtract 1.294 from the sum: 1.309 - 1.294 = 0.015. Therefore, the correct answer is 0.015. Choice B (0.15) is incorrect as it does not reflect the accurate calculation. Choice C (1.5) is incorrect as it is not the correct result of the expression simplification. Choice D (-0.15) is incorrect as it represents a different value than the correct outcome of the expression simplification.

3. Solve this equation: 2x+8=0

Correct answer: A

Rationale: To solve 2 π‘₯ + 8 = 0 2x+8=0: Subtract 8 from both sides: 2 π‘₯ = βˆ’ 8 2x=βˆ’8 Divide both sides by 2: π‘₯ = βˆ’ 8 2 = βˆ’ 4 x= 2 βˆ’8 ​ =βˆ’4 Therefore, the solution is π‘₯ = βˆ’ 4 x=βˆ’4.

4. Simplify the expression 3x - 5x + 2.

Correct answer: D

Rationale: When simplifying the expression 3x - 5x + 2, start by combining like terms. -5x is subtracted from 3x to give -2x. Adding 2 at the end gives the simplified expression -2x. Therefore, the correct answer is -2x. Choice A, -2x + 2, incorrectly adds 2 at the end. Choice B, -8x, incorrectly combines the coefficients of x without considering the constant term. Choice C, 2x + 2, incorrectly adds the coefficients of x without simplifying.

5. 4.67 miles is equivalent to how many kilometers to three significant digits?

Correct answer: B

Rationale: To convert miles to kilometers, we use the conversion factor of 1 mile β‰ˆ 1.60934 km. Therefore, 4.67 miles * 1.60934 km/mile = 7.514 km. When rounded to three significant digits, the answer is 7.51 km. Choice A of 7.514 km is the correct conversion, but the question asked for the answer to be rounded to three significant digits, making choice B, 7.51 km, the most precise and correct option. Choices C and D are incorrect conversions and do not match the correct conversion of 4.67 miles to kilometers.

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