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Alenkasestr [34]
4 years ago
5

If RT=36, find the value of x

Mathematics
1 answer:
Talja [164]4 years ago
8 0

Answer:

4

Step-by-step explanation:

So we know that RT is 36.

Note that RT is the combined length of RS and ST. Therefore:

RT=RS+ST

Substitute. RT is 36, RS is 6x+1 and ST is x+7:

36=(6x+1)+(x+7)

Combine like terms and add:

36=7x+8

Subtract 8 from both sides:

28=7x

Divide by 7:

x=4

So, our answer is 4 :)

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The order in which the chairs are chosen is important, hence, the <em>permutation formula </em>is used to solve this question.

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In this problem, two chairs are chosen from a set of n, and there are 72 different outcomes, hence:

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P_{n,x} = \frac{n!}{(n-x)!}

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You can learn more about the permutation formula at brainly.com/question/25925367

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