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3 years ago

A car is traveling at a speed of 20 meters per second. What is the cars speed in kilometers per hour

Mathematics

1 answer:

IRISSAK [1]3 years ago

4 0

Answer:

72 km/h

Step-by-step explanation:

We need to convert units

so:

20 m ----- 1 km -------- 3600 s

1 s ----- 1000 m ----1 h

and solve ot

20 x 1 x 3600 s = 72000 we multiply numerators

1s x 1000 m x 1 h = 1000 we multiply denominators

we divide de results 72000/1000 = 72

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3 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

A drainage basin bordering the sea has an area of 7500 km2 . The average precipitation for this drainage basin is 900 mm year-1

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Answer with Step-by-step explanation:

The basic water balance dictates that "Amount of water flowing into the basin should be equal to the amount of water flowing out of it".

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where

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Q = is outflow from the basin

Applying the given values we get

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Part b)

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3 years ago

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