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ZX-2BB7BFC5E62024年3月C卷练习 · 第 11 题
2024年3月C卷练习 · 原库模块 1 · Q11 原库参考解析
During hibernation, American black bears do not eat or replenish calories. A certain black bear weighed 322 pounds when entering hibernation and lost weight at a rate of 0.7 pound per day. At this rate, how many days after entering hibernation did the black bear weigh 280 pounds?
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