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jekas [21]
3 years ago
9

PLEASE HELP ASAP!!!!

Mathematics
1 answer:
AleksAgata [21]3 years ago
8 0

Answer:

see below   PLEASE GIVE BRAINLIEST

Step-by-step explanation:

Rate on still sidewalk :  49 ÷ 7 = 7 ft per second

Rate of moving sidewalk : 77 ÷ 7 = 11 ft per second

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