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比・比例・速率与单位换算挑战
The area of a rectangular region is increasing at a rate of 310 square feet per hour. Which of the following is closest to this rate in square meters per minute? (Use 1 meter = 3.28 feet.)
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比・比例・速率与单位换算进阶
For certain air temperatures, the table gives wind chill temperatures for two different wind speeds.
According to the table, what is the wind chill temperature, in degrees Fahrenheit (° F), when the air temperature is 27° F and the wind speed is 20 miles per hour (mph)?
(Disregard the degree symbol when entering your answer.)
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比・比例・速率与单位换算进阶
Charles saves \( \frac{4}{5} \) of the $230 he earns each week from his summer job. If Charles continues to save at this rate, how much money, in dollars, will Charles save in 3 weeks?
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比・比例・速率与单位换算挑战
One gallon of paint will cover 70 square feet of a surface. A room has a total wall area of w square feet. Which equation represents the total amount of paint P, in gallons, needed to paint the walls of the room twice?
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比・比例・速率与单位换算进阶
The ratio s to t is equivalent to the ratio 1 to 3. If the value of s is multiplied by 25, how will the value of t change to maintain this ratio?
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比・比例・速率与单位换算进阶
An object's speed is 60 yards per second. What is the object's speed, in feet per second? (1 yard = 3 feet)
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比・比例・速率与单位换算进阶
A triathlon is a multisport race consisting of three different legs. A triathlon participant completed the cycling leg with an average speed of 17.700 miles per hour. What was the average speed, in yards per hour, of the participant during the cycling leg?
(1 mile = 1,760 yards)
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比・比例・速率与单位换算基础
For certain air temperatures, the table gives wind chill temperatures for two different wind speeds.
According to the table, what is the wind chill temperature, in degrees Fahrenheit , when the air temperature is 29°F and the wind speed is 15 miles per hour (mph)? (Disregard the degree symbol when entering your answer.
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比・比例・速率与单位换算基础
Charles saves \( \frac{3}{5} \) of the $225 he earns each week from his summer job. If Charles continues to save at this rate, how much money, in dollars, will Charles save in 3 weeks?
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比・比例・速率与单位换算基础
The ratio of k to p is constant. If \( k=7 \), then \( p=6 \). What is the value of k when \( p=336 \)?
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比・比例・速率与单位换算进阶
A certain town has an area of 4.29 square miles. What is the area, in square yards, 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 length of 450 meters is equal to how many decimeters? (1 meter = 10 decimeters)
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