raiindrxp
06.12.2021 •
Mathematics
Marina can bicycle 19.5 miles in the same time it takes her to run 6 miles. She bikes 9 miles per hour faster than she runs. At what speed does Marina run? Distance (mi) Rate (mph) Time (hr) Bicycling 19.5 r + 9 StartFraction 19.5 Over r + 9 EndFraction Running 6 r StartFraction 6 Over r EndFraction 4 mph 5 mph 9 mph 13 mph
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Ответ:
293
Step-by-step explanation:
4*72+5 = 293