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liubo4ka [24]
3 years ago
9

Han can run 100 meters in 20 seconds how long will it take him to run 3000 metres

Mathematics
1 answer:
Juliette [100K]3 years ago
4 0

Answer:

600 seconds

Step-by-step explanation:

In this case we have to calculate the speed;

Speed = Distance/Time

Speed = 100/20 = 5 mph

Next to get our answer we have to calculate the amount of time

Time = Distance/Speed

Time = 3000/5 = 600 seconds

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Blizzard [7]

Answer:

13

Step-by-step explanation:

We only need to pay attention to the x. We multiply 3 and 4 to get 12. Then we add 1 to get 13.

4 0
3 years ago
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Which of the following is an informal proof of the given conjecture? Conjecture: All squares are similar
tester [92]
The 3rd one because of the laws and newton’s ways
7 0
3 years ago
The frequency of the musical note C4 is about 261.63 Hz. What is the frequency of the note a perfect fifth below C4?
kolbaska11 [484]

Answer:

The frequency of the note a perfect fifth below C4 is;

B- 174.42 Hz

Step-by-step explanation:

Here we note that to get the "perfect fifth" of a musical note  we have to play a not that is either 1.5 above or 1.5 below the note to which we reference. Therefore to get the frequency of the note a perfect fifth below C4 which is about 261.63 Hz, we have

1.5 × Frequency of note Y = Frequency of C4

1.5 × Y = 261.63

Therefore, Y = 261.63/1.5 = 174.42 Hz.

6 0
2 years ago
For which of the following are x=4 and x=-4 solutions?
ELEN [110]

Answer:

2x2 - 5x - 12 = 0.

(2x + 3)(x - 4) = 0.

2x + 3 = 0 or x - 4 = 0.

x = -3/2, or x = 4. I hope this helps

Step-by-step explanation:

5 0
3 years ago
Elizabeth has 140 citrus trees and 180 palm trees
lisabon 2012 [21]
You have to find the GCF of 140 and 180.

The GCF is 20 so thats your answer.
4 0
3 years ago
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