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3 years ago

Karl rides his bicycle 120 feet in 10 seconds. How many feet does he ride in 1 minute

Mathematics

2 answers:

Bumek [7]3 years ago

7 0

A minute is 6 times as long as 10 seconds, so we expect Karl will ride 6 times as far.

$\dfrac{120\,ft}{10\,s}=\dfrac{120\,ft}{10\,s}\cdot\dfrac{60\,s}{1\,min}=\dfrac{720\,ft}{1\,min}$

Karl rides 720 ft in 1 minute.

Kitty [74]3 years ago

6 0

Answer:

720

Step-by-step explanation:

120/10 to find his feet per second which is 12 feet per second

12*60

since there are 60 seconds in a minute

= 720

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ivolga24 [154]

Answer:

<u>Tony biked 1 hour 40 minutes and run 3 hours 20 minutes.</u>

Step-by-step explanation:

How long did Tony speed on his bike?

Let s to be Tony's running speed, then 8s is Tony's biking speed

Let's recall that Time = Distance/Speed

Bike time + Running time = 5 hrs

Replacing with the real values, we have:

60/8s + 15/s = 5

8s as Lowest Common Denominator

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60 + 120 = 40s

-40s = -180

s = -180-40

s = 4.5 ⇒ 8s = 36

Tony run at 4.5 mph and biked at 36 mph

Now, we can calculate the time, this way:

Bike time = Bike distance/Bike speed

Replacing with the real values, we have:

Bike time = 60/36

Bike time = 5/3 (Dividing by 12)

5/3 hours * 60 = 100 minutes or 1 hour 40 minutes

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<u>Tony biked 1 hour 40 minutes and run 3 hours 20 minutes.</u>

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2 years ago

Use set of notation to write the domain and range of the function y=-3x(x+1)^2+3 shown in graph

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In order to determine the domain and range of the previous function, you consider that the given function is available for any value of x. Then, you have:

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