14 of ABag for Revi Calculator Reference A mountaineer climbed 1,000 feet at a rate of...

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14 of ABag for Revi Calculator Reference A mountaineer climbed 1,000 feet at a rate of x feet per hour. He dimbed an additional 5,000 feet at a different rate. This rate was 10 feet per hour less than twice the first rate. Which expression represents the number of hours the mountaineer climbed? OA. 6,000 3x-10 O B. 6,000(3x-10) O c. 1,000 5,000 OD. X + 2x-10 1,000+ 5,000-10 x 2x 14 of ABag for Revi Calculator Reference A mountaineer climbed 1,000 feet at a rate of x feet per hour. He dimbed an additional 5,000 feet at a different rate. This rate was 10 feet per hour less than twice the first rate. Which expression represents the number of hours the mountaineer climbed? OA. 6,000 3x-10 O B. 6,000(3x-10) O c. 1,000 5,000 OD. X + 2x-10 1,000+ 5,000-10 x 2x