SOLUTION: In a social hall of a building, there are 150 seats arranged in rows, with 5 more seats per row than the number of rows. How many seats are there in each row? ( answer is 15 - sho
Algebra.Com
Question 923810: In a social hall of a building, there are 150 seats arranged in rows, with 5 more seats per row than the number of rows. How many seats are there in each row? ( answer is 15 - show your solution )
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
One solution is to guess at the answer, which is fairly easy since 150 isn't a huge number. 10*15 = 150, so 15 seats per row, 10 rows.
Or, you could let x = number of rows, x+5 = number of seats per row so that x(x+5) = 150, then solve the quadratic by rearranging and factoring, or by quadratic formula.
RELATED QUESTIONS
PLEASE HELP ME SOLVE THESE PROBLEMS:
1. A SQUARE AND RECTANGLE HAVE EQUAL AREAS. IF THE... (answered by drj)
In a hall, there are 180 seats. The number of seats in each row is 8 more than the number (answered by mananth)
a conference hall has 20 rows of seats .the first row contains 20 seats,the second row... (answered by ikleyn)
A theater can seat 170 people. The number of rows is 7 less than the number of seats in... (answered by ewatrrr)
A theater can seat 216 people. The number of rows is 6 less than the number of seats in... (answered by Fombitz)
A theater can seat 713 people. The number of rows is 8 less than the number of seats in... (answered by fractalier)
A theater can seat 216 people. The number of rows is 6 less than the number of seats in... (answered by Alan3354)
A theater can seat 270 people. The number of rows is 3 less than the number of seats in... (answered by solver91311,ikleyn,greenestamps)
A theater can seat 144 people. The number of rows is 7 less than the number of seats in... (answered by Alan3354)