標題:
Maths question (hw)
發問:
Q.1Frank's original seating plan for a concert to be held in his school hall has 20 rows with the same number of seats in each row. Later he finds that if he puts 5 more seats in each row,he has to arrange 18 rows so that the total number of seats is not less than the original arrangement.What is the... 顯示更多 Q.1 Frank's original seating plan for a concert to be held in his school hall has 20 rows with the same number of seats in each row. Later he finds that if he puts 5 more seats in each row,he has to arrange 18 rows so that the total number of seats is not less than the original arrangement.What is the maximum number of seats in each row in Frank's original seating plan? (Ans:45) Please give me steps and explaination!!!
最佳解答:
此文章來自奇摩知識+如有不便請留言告知
let the original seats in each row is x. the original seats =20x the seat after arranged is 18(x+5) 18(x+5)>=20x 18x+90>=20x 2x
其他解答:
留言列表
