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2 years ago

9

If a bus travels 20 km in 30 minutes. What is the average speed of the bus?

2 answers:

sattari [20]2 years ago

4 0

<span>So we need to find the average speed of the bus that travels 20 km in 30 minutes. Average speed is defined as: Average speed=distance travelled/time taken or: v=s/t. We know s=20 km and t=30 minutes=0.5h. So after we input our numbers in the equation, we get: v=20km/0.5h=40km/h. So the correct answer is C) 40km/h.</span>

tatiyna2 years ago

4 0

Answer:c

Step-by-step explanation:

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1 year ago

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2 years ago

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3 years ago

Find the 137th odd number.

KIM [24]

The first odd number is 1. The next is 2 more than the previous one.

It's an arithmetic sequence.

The general term of an arithmetic sequence:

$a_n=a_1+(n-1)d$

a_n - n-th term

a_1 - first term

d - common difference.

We have

$a_1=1,\ d=2,\ n=137$

Substitute:

$a_{137}=1+(137-1)(2)=1+(136)(2)=1+272=273$

<h3>Answer: 137th odd number is equal 273.</h3>

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2 years ago

Read 2 more answers

How many pounds must a sand bag weigh to test if a safety net can absorb the proper amount of force?

Agata [3.3K]

its 400lbs
hope i helped

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3 years ago