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drek231 [11]
3 years ago
13

Suppose the tortoise travels for 12 seconds. Explain how you could find the distance the tortoise travels

Mathematics
1 answer:
Ksju [112]3 years ago
7 0
You cannot find the distance it travels, unless you know how far it moves per second.
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How much pure acid should be mixed with 5 gallons of a 50% acid
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Answer:

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Step-by-step explanation:

5 0
3 years ago
At a competition with 7 runners, medals are awarded for first, second, and
il63 [147K]

Answer:

Option A - Permutation; number of ways = 210

Step-by-step explanation:

Given : At a competition with 7 runners, medals are awarded for first, second, and  third places. Each of the 3 medals is different.

To find : How many ways are there to  award the medals?        

Solution :

There are 7 runners but medals are three.

The first runner up got first medal as one is locked.

The second runner up got second medal as second is locked.

The third runner up got the third medal.

So, There is a permutation.

Number of ways to award the medals is ^7P_3

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Substitute the values,

^7P_3=\frac{7!}{(7-3)!}

^7P_3=\frac{7\times 6\times 5\times 4!}{4!}

^7P_3=210

Therefore, Option A is correct.

Permutation; number of ways = 210

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