Math CentralQuandaries & Queries


Question from Kayla:

if 80% of a item is $\$200.00$ what is the original price

Hi Kayla,

if 80% of a item is $\$200.00$ what is 40% of an item? What is 20%? What is 10%? What is 1%?

If you know 1% you can multiply by 100 to get 100%.

If you performed the step above to find 1% you divided by 2, then 2 again, and 2 again and then by 10. Thus in total you divided 80% and $\$200.00$ by 80. You can do this in one step by dividing $\$200.00$ by 80 to see what 1% costs.

I hope this helps,

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