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when some one speaks of percentage, what number are they referring to?
no, a percent refers to 100
you have to give 100%
no my question ask The photo lab for the Cary News reduces each side of a photograph by 20%. The original size of the photo is 6 inches by 9 inches. What are the dimensions of the reduced photo?
I understand your question. But you first have to understand what a percentage is to answer the question
Take a dollar bill. It is 100 pennies, right? So how much is 20%
i dont know im sorry i am not good with percents :(
if one dollar is 100 pennies, then 100% of one dollar is 100 pennies. Do you follow that?
So the key to understanding this problem, or any problem with percentages is to know that percent refers to 100
So if you take 20% from 100% how much is left?
Know, how do we write out one dollar?
that 1 is 100%
oooh ok i kinda understand now
if we took one penny away we would have 99 cents 0.99
So how would you write 80%
Yes, good job
So now you are ready to do the problem
now you have 6 and you want to take 20% away. So, you can multiply by 80%
Multiply 6 * 80% like you wrote it
No, not quite. You subtracted .20 cents not 20%
Yes, great job
Now do the same for the 9
multiply it by 80??
yes, good job
so you now have your two new dimentions
thank you i never understood how to do percent problems thank you :)
k bye gtg thx again :)