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.

Guest Nov 26, 2018

#1**0 **

(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

#1**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