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比・比例・速率与单位换算进阶

A certain pigeon species can fly at an average speed of 16 meters per second when in continuous flight. At this rate, how many meters would this pigeon species fly in 4 seconds?
原库参考解析
2024年12月B卷 · 原库模块 1 · Q4作答 ↗
比・比例・速率与单位换算挑战

An object moves at a speed of \( \frac{3}{50} \) feet per second. What is this speed, in yards per second? (3 feet = 1 yard)
原库参考解析
2024年12月B卷 · 原库模块 2 · Q3作答 ↗
比・比例・速率与单位换算进阶

A triathlon is a multisport race consisting of three different consecutive events. A triathlon participant plans to complete the cycling event with an average speed of 19,008 yards per hour. What is this average speed, in miles per hour? (1 mile =1,760 yards)
原库参考解析
2024年3月A卷 · 原库模块 1 · Q6作答 ↗
比・比例・速率与单位换算挑战

A certain town has an area of 3.51 square miles. What is the area, in square yards, of this town?(1 mile = 1,760 yards)
原库参考解析
2024年3月A卷 · 原库模块 2 · Q13作答 ↗
比・比例・速率与单位换算挑战

An object's speed is increasing at a rate of 10.7 meters per second squared. What is this rate, in miles per minute squared, rounded to the nearest tenth? (Use 1 mile = 1,609 meters.)
原库参考解析
2024年3月B卷 · 原库模块 2 · Q22作答 ↗
比・比例・速率与单位换算进阶

A remotely operated vehicle (ROV) is used for underwater ocean research. When the ROV is at a depth of 31 fathoms, what is the ROV's depth in feet? (l fathom = 6 feet)
原库参考解析
2024年3月C卷练习 · 原库模块 1 · Q4作答 ↗
比・比例・速率与单位换算挑战

Carl, Ryan, and Jodie can make pancakes in the ratio of 2: 3: 5. If Jodie can make a pancake in 4 minutes, how many minutes will it take Carl and Ryan to make 5 pancakes if the two of them work together?
原库参考解析
2024年3月D卷 · 原库模块 2 · Q12作答 ↗
比・比例・速率与单位换算挑战

Ruben can finish painting a wall in 2 hours. Jake can finish painting the same wall in 3 hours. If the two of them help paint the same wall together, how long will it take them to finish the job?
原库参考解析
2024年3月D卷 · 原库模块 2 · Q16作答 ↗
比・比例・速率与单位换算挑战

A rectangle has an area of 21 square yards. What is the area, in square feet, of the rectangle? ( 3 feet = 1 yard)
原库参考解析
2024年3月D卷 · 原库模块 2 · Q8作答 ↗
比・比例・速率与单位换算挑战

For a certain rectangular region, the ratio of its length to its width is 10 to 4.If the width of the rectangular region increases by 7 units, how must the length change to maintain this ratio?
原库参考解析
2024年5月A卷 · 原库模块 2 · Q8作答 ↗
比・比例・速率与单位换算进阶

For each of two rectangles, the ratio of the rectangle's length to its width is 10 to 5. The width of rectangle X is 16.5 times the width of rectangle Y. How does the length of rectangle x compare to the length of rectangle Y?
原库参考解析
2024年5月B卷练习 · 原库模块 1 · Q15作答 ↗
比・比例・速率与单位换算挑战

For a certain rectangular region, the ratio of its length to its width is 20 to 8. If the width of the rectangular region increases by 9 units, how must the length change to maintain this ratio?
原库参考解析
2024年5月C卷 · 原库模块 2 · Q7作答 ↗