Math
posted by sam .
A speaker was so boring that onehalf of the audience left after a few minutes. Five minutes later, onethird of the remaining audience left. Ten minutes later, onefourth of those remaining left, leaving only nine people in the audience. How many people were in the audience at the beginning of the lecture.

x = people in audience
1/2 x = left 1st
1/3 (1/2 x) = 1/6 x = left next
1/4 (1/3)(1/2)x = 1/24 x = left last
x  (1/2 x + 1/6 x + 1/24 x) = 9
Solve for x
Respond to this Question
Similar Questions

English
For a Raisin in the Sun, I have to draw and label a diagram of the stage. On the page, typed are: up stage, down stage, audience, stage right, and stage left. I don't get it, like what am I supposed to do, draw the kitchen, the couch … 
math
Here it is: One night the palace was having a midnight snack. The king ate 1/6 of the mangoes. The Queen ate 1/5 of the remaining mangoes. The 1st prince ate 1/4 of the mangoes left. Then the 2nd prince ate 1/3 of the remaining mangoes. … 
algebra
a speaker was so boring that onehalf of the audience left after a few minutes. Five minutes later, onethird of the remaing audience left. Ten minutes later, onefourth of those remaining left, leaving only nine people in the audience. … 
MATH HELP PLEASE
One night the King couldn't sleep, so he went down into the Royal kitchen, where he found a bowl full of mangoes. Being hungry, he took 1/6 of the mangoes. Later that same night, the Queen was hungry and couldn't sleep. She, too, found … 
Math
The table shows the times a train left Austin and arrived in San Antonio on 5 nights last week. Mon 6:30pm left 7:22pm arrived Tues 6:18pm left 7:10pm arrived Wed 6:45pm left 7:37pm arrived Thu 7:05pm left 7:57pm arrived Fri 6:28pm … 
CRITICAL THINKING
Please post a substantive response to the following discussion questions by clicking on Reply: Aristotle developed a theory of persuasion by which there are three ways a speaker can persuade an audience. Ethos is the idea that an audience … 
maths
Mr.Mathew left onefourth of his property to his daughter as well as his son. He also left onethird of the remaining to charity and the rest to his wife. How much did his wife get if the charity amount was 100,000? 
math
The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes). The remaining credit after 26 minutes of calls is $16.36 , and the remaining credit after 45 minutes … 
Math
A group of ten people were planning to chip in equallyto buy several pizzas. After the pizzas were ordered, one person left. As a result, each of the remaining nine people had to pay an extra 60 cents. How much was the total bill? 
maths fraction
At a concert, 2/7 of the audience were men and 2/5 of the remaining audience were women.The rest were children. a) what fraction of the audience were children?