Exam 7: Ratio and Proportion

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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? 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 Side of square = 0.8 cm

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Solve the proportion. 59=6y\frac { 5 } { 9 } = \frac { 6 } { y }

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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

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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.

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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.

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Use the map given below to find the approximate air distance between Tulsa and Jefferson City. Use the map given below to find the approximate air distance between Tulsa and Jefferson City.

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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

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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?

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Use the formulas for the hydraulic press to find MA. r l = 48 in. and r s = 4 in. MA = __________

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Solve the proportion. Round the result to three significant digits when necessary. −9x=29\frac { - 9 } { x } = \frac { 2 } { 9 }

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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

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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. 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 Side of square = 0.1 cm width = __________ cm

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Express the ratio in lowest terms. 8 to 5348 \text { to } 5 \frac { 3 } { 4 }

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Use the map given below to find the approximate air distance between Memphis and Little Rock. Use the map given below to find the approximate air distance between Memphis and Little Rock.

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Express the rate in lowest terms. 800mi8gal\frac { 800 \mathrm { mi } } { 8 \mathrm { gal } }

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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

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