Saturday
April 19, 2014

Homework Help: math

Posted by jack on Sunday, October 23, 2011 at 5:03pm.

A set of 100 open lockers are numbered from 1 - 100. Sarah comes by and closes all the lockers with even numbers. Then Sarah walks past the lockers again and checks the ones numbered with multiples of 3. If the locker is closed, she opens it; if it is open, she closes it. She repeats this with the multiples of 4, 5, 6, … and so on to 100. When she has finished, which lockers will be open? Explain how you know.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Math - Imagine there are 100 lockers. Each locker is given a number 1-100. When ...
math - A school’s gym lockers are numbered from 1 to 150. How many lockers have ...
carver - there are lockerslined up numbered 1 to 1000.They are all closed . i ...
math - the 20 students in Mr. Wolf's 4th grade class are playing a game in a ...
Math - A new school has exactly 1,000 lockers and 1,000 students. the student ...
9th grade - A new high school has just been completed. There are 1,000 lockers ...
Lockers - I'm starting middle school and during the orientation they let us try ...
managerial econ - As manager of Citywide Racquet Club, you must determine the ...
Math - Newon Middle School has a hall with 500 lockers, all of which are closed...
algebra - the new school has exactly 1000 lockers and 1000 students. on the ...

Search
Members