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A room contains 140 pillows. The number of pillows per row is 1 less than twice the number of rows. Find the number of rows and number of pillows per row.

 Nov 26, 2018

Best Answer 

 #1
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(2r-1) * r = 140

2r^2 - r -140 = 0

 

Hmmmm,,,,, I don't think this has an answer !    You are sure it is 140 pillows?

19 x 10 rows = 190

17 x 9 rows = 153

15 pillows/row x 8 rows = 120 pillows

 Nov 27, 2018
 #1
avatar+20239 
0
Best Answer

(2r-1) * r = 140

2r^2 - r -140 = 0

 

Hmmmm,,,,, I don't think this has an answer !    You are sure it is 140 pillows?

19 x 10 rows = 190

17 x 9 rows = 153

15 pillows/row x 8 rows = 120 pillows

ElectricPavlov Nov 27, 2018
 #2
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0

sorry it was a typo it's 120 pillows. 

Guest Nov 27, 2018

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