Hannah's scribepost for February 3, 2010

question 6.

A store discounted items by 50% off the original price one week. The following week and additional 10% was taken off the already reduced price. The regular price of a CD player is $85.00. What is the reduced price in the second week?

First we find 50% of $85.00 and subtract it from the original price.

50% is 42.50. We take that away from the original price because it's the discount.

So the selling price for the first week is $42.50

$42.50 is now our new 100%. We now have to find 10% discount of that. Instead of finding 10% and subtracting it from the total, a shorter way is to just find 90%. Because 100% take away 10% equals 90%. Using this method, you will be able to skip one step which is subtracting. This will also save you time.

The selling price after the second week is $38.28

question 8.

Represent the percent on each statement on a hundred grid.

a) 79.1% of all the students are right handed.

b) The average person in Canada uses about 223% as much water per day as the average person in France.

c) The school enrollment increased by 0.8% this year.

question 9.

I'm sorry, it's late.