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krek1111 [17]
3 years ago
5

Olivia walked 2 2/5 km in 2/3 hour while Ryan walked 4 1/2 km in 1 1/2 hours. Who walked faster and how much faster?

Mathematics
1 answer:
Aleks04 [339]3 years ago
7 0
Find the unit rate for each Olivia and Ryan:

2 2/5 km       15       36 km
------------ * ------- = ------------ = 3.6 km/hr (Olivia)
 2/3 hr          15        10 hr


4 1/2 km          2          9 km
------------- * --------- = --------- = 3 km/hr (Ryan)
1 1/2 hr           2           3 hr

Olivia walked 0.6 km/hr faster than did Ryan.



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