math

Dina and Masha start cycling on a 20 km bike path at the same time. When Dina reaches the end of the path, Masha still has 4 km of the path left to cycle. If Dina’s cycling speed is 10 km/h, how much time longer will Masha need to complete the path? PLZ HELP ME

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  1. D time = distance / rate = 20 km / 10 kph = 2 hr

    M has covered ... 20 km - 4 km = 16 km
    ... in 2 hr ... 16 km / 2 hr = 8 kph

    M has 4 km to go ... 4 km / 8 kph = 1/2 hr

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  2. D time = distance / rate = 20 km / 10 kph = 2 hr

    M has covered ... 20 km - 4 km = 16 km
    ... in 2 hr ... 16 km / 2 hr = 8 kph

    M has 4 km to go ... 4 km / 8 kph = 1/2 hr
    thanks R_Scott.

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  3. lol r_scott made an alt account just so he could respond to himself

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  4. What is 7,136 divided by 8 equal

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  5. 892

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