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xxMikexx [17]
4 years ago
7

What is the slope of a trend line that passes through the points (–3, 3) and (18, 26)? StartFraction 15 Over 29 EndFraction Star

tFraction 21 Over 23 EndFraction StartFraction 23 Over 21 EndFraction StartFraction 29 Over 15 EndFraction
Mathematics
2 answers:
valina [46]4 years ago
7 0

Answer:

23/21

Just took the test.

Alik [6]4 years ago
5 0

Answer:

  23/21

Step-by-step explanation:

The slope is computed from ...

  m = (y2 -y1)/(x2 -x1)

For the given points, the slope is ...

  m = (26 -3)/(18-(-3)) = 23/21

The slope of the trend line is 23/21.

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Q10) A book was sold for Rs. 550 with a profit of 10%. What was its cost price? *​
stealth61 [152]

Answer:

CP = Rs 500

Step-by-step explanation:

Given that,

Selling price of a book, SP = Rs 550

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P\%=\dfrac{SP-CP}{CP}\times 100\\\\\dfrac{10}{100}=\dfrac{550-CP}{CP}\times 100\\\\\dfrac{1}{10}=\dfrac{550-CP}{CP}\\\\CP=5500-10CP\\\\CP+10CP=5500\\\\11CP=5500\\\\CP=500

So, the cost price of the book is Rs 500.

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