joellundy
23.07.2019 •
Mathematics
Four friends compared there bike riding times. jess rode 4.25 km in 20 min. corey rode 3.75 km in 18 min. mia rode 3.5 km in 17 min. zoey rode 3.6 km in 16 min. who rode at the greatest rate of speed? a. jess b. corey c. mia d. zoey
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Ответ:
Speed = 4.25: 20 = 0.212 km/min
Corey rode 3.75 km in 18 min.
S= 3.75 : 18= 0.208
Mia rode 3.5 km in 17 min.
S = 3.5 :17 = 0.205
Zoey rode 3.6 km in 16 min.
S= 3.6 :16 = 0.225
The greatest rate of speed : ZOE with 0.225 km/min
Ответ: