Exam 7: Ratio and Proportion
Exam 1: Basic Concepts447 Questions
Exam 2: Signed Numbers and Powers of 10200 Questions
Exam 3: The Metric System274 Questions
Exam 4: Measurement287 Questions
Exam 5: Polynomials: an Introduction to Algebra228 Questions
Exam 6: Equations and Formulas246 Questions
Exam 7: Ratio and Proportion116 Questions
Exam 8: Graphing Linear Equations113 Questions
Exam 9: Systems of Linear Equations114 Questions
Exam 10: Factoring Algebraic Expressions220 Questions
Exam 11: Quadratic Equations137 Questions
Exam 12: Geometry241 Questions
Exam 13: Right Triangle Trigonometry132 Questions
Exam 14: Trigonometry With Any Angle76 Questions
Exam 15: Basic Statistics201 Questions
Exam 16: Binary and Hexadecimal Numbers252 Questions
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Use the scale drawing of a metal plate cover in the figure below to answer the question. What is the area of the plate cover?
Side of square = 0.8 cm
(Multiple Choice)
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A farmer uses 180 lb of a chemical on a 40-acre field. How many pounds will he need for a 220-acre field? Assume the same rate of application.
__________ lb
(Short Answer)
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Calculate the values of x and y in the following table. 16 4 in. 8 x in. 110 y in. 60 11 in.
(Multiple Choice)
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Use the formulas for the hydraulic press to find F l . F s = 52 lb, r l = 9 in. and r s = 1 in.
(Multiple Choice)
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Use the map given below to find the approximate air distance between Tulsa and Jefferson City. 
(Multiple Choice)
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Calculate the values of x and y in the following table. Gear A Gear B Number of teeth Number of teeth 40 700 25 x 50 56 y 80
(Multiple Choice)
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A small pulley is 13 in. in diameter, and a larger one is 19 in. in diameter. How many rpm does the larger pulley make if the smaller one revolves at 570 rpm?
(Multiple Choice)
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Use the formulas for the hydraulic press to find MA.
r l = 48 in. and r s = 4 in.
MA = __________
(Short Answer)
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Solve the proportion. Round the result to three significant digits when necessary.
(Multiple Choice)
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Find the amount (in mL) of pure ingredient needed to prepare the solution as indicated. Give the answer to one decimal place, if necessary.
200 mL of 9% Lysol solution from pure Lysol
__________ mL
(Short Answer)
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Use the scale drawing of a metal plate cover in a figure below to answer the question.
What is the distance between the centers of the right pair of circular holes? Give the answer to one decimal place.
Side of square = 0.1 cm
width = __________ cm
(Short Answer)
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Use the map given below to find the approximate air distance between Memphis and Little Rock. 
(Multiple Choice)
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One pulley is twice as large in diameter as a second pulley. If the larger pulley turns at 294 rpm, what is the rpm of the smaller?
__________ rpm
(Short Answer)
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