Mathematics: The speed of the car was 45 mph. a driver noticed that while moving with this speed it took him 40 seconds to cross a bridge. on the way back crossing the same bridge, it took him 30 seconds. what was the speed of the car on the way back?

The speed of the car was 45 mph. a driver noticed

Ответ:

marelinatalia2000

12.03.2022

Distance = speed*time

Each time the car travels the same distance across the bridge.

By setting the distances equal you get the following equation:

$30x = 40*45 \\ \\ x = \frac{40*45}{30} = 60$

Car was going 60 mph

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Ответ:

BigGirlsTheBest

17.09.2021

Mathematics

For the number 2 dos and three is tres

Hope that helped:)

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The speed of the car was 45 mph. a driver noticed that while moving with this speed it took him 40 seconds to cross a bridge. on the way back crossing the same bridge, it took him 30 seconds. what was the speed of the car on the way back?

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