Notes: Percent/Decimal/Fraction Conversions

If 40% of the students have a calculator, how many students have a calculator? 50 is the total, 40 is the percent . Cross Multiply 100 * x = 40 * 50 . 100x = 300. x = 20 20 students have calculators. 5.) Brittany paid $6.00 in sales tax for a table. The tax rate is 5%. What is the purchase price of the table (before tax)? $6.00 is the part, 5 is the percent. Set up a proportion. Cross Multiply ... ................
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