Bob roller skates 48 km in 4 hours. What is his average speed in kilometers per hour?

Answer 1

His average speed is #"12 km/hr"#.

Remember the triangle of Speed, Distance and Time. If you remember it, you'll ace these kinda questions.

I had trouble with these formulas but the triangle helped me a LOT! Anyways, let's get back to the question. The formula for average speed is pretty much the same as the formula for just speed. The average speed formula is

#"Average speed" = "Total Distance"/"Total Time"#

So......

#"48 km"/"4 hr" = "12 km/hr"#

My source

I hope this explanation helps you!

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Answer 2

Bob's average speed can be calculated by dividing the total distance he traveled by the total time taken. Therefore, Bob's average speed is ( \frac{48 , \text{km}}{4 , \text{hours}} = 12 , \text{km/h} ).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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