5272道题目5525 条题源记录 · 相同内容已合并
比・比例・速率与单位换算挑战
An object's speed, in meters per hour, is increasing at a rate of 1,490 meters per hour per second. Which of the following is closest to this rate in feet per second squared? (Use 1 meter = 3.28 feet.)
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比・比例・速率与单位换算挑战
One gallon of sealant costs $13 and will cover 300 square feet of a surface. A deck has a total surface area of d square feet. Which equation represents the cost c, in dollars, of the sealant needed to cover the deck twice?
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比・比例・速率与单位换算挑战
A container has a volume of 0.84 cubic meters. Which of the following is closest to this volume, in quarts?
(Note: 100.00 centimeters = 1 meter. Use 946.35 cubic centimeters = 1.00 quart.)
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比・比例・速率与单位换算挑战
One gallon of sealant costs $29 and will cover 300 square feet of a surface. A deck has a total surface area of d square feet. Which equation represents the cost c, in dollars, of the sealant needed to cover the deck twice?
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比・比例・速率与单位换算进阶
The length of each side of triangle A is 270 millimeters. The length of each side of triangle B is double the length of each side of triangle A. What is the length, in millimeters, of each side of triangle B?
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比・比例・速率与单位换算挑战
The ratio 6 to 3 is equivalent to the ratio 24 to 3k, where k is a constant. What is the value of k?
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比・比例・速率与单位换算挑战
The ratio 10 to 2 is equivalent to the ratio 40 to 2k, where k is a constant. What is the value of k ?
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比・比例・速率与单位换算进阶
An object travels x inches in y seconds. At this rate, which expression represents the time, in seconds, it takes the object to travel a distance of 12x inches?
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比・比例・速率与单位换算进阶
The number of muskrat in a 134-acre area is estimated to be 2,278. What is the estimated population density, in muskrat per acre, of this area?
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比・比例・速率与单位换算进阶
In the ancient Roman measurement system, a leuga was a unit of length that was equal to 7,500 pedes. In this measurement system, how many pedes were equivalent to 3.8 leugas?
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比・比例・速率与单位换算挑战
A certain town has an area of 12,669,184 square yards. What is the area, in square miles, of this town? (1 mile = 1,760 yards)
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比・比例・速率与单位换算进阶
A dog's mass is 37 kilograms. What is the dog's mass, in grams? (1 kilogram = 1,000 grams)
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