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Ratios & Percentages

Ratios & Percentages

Example 1

You landed a fabulous summer job working as a sales assistant at Shmacy's.  You earn a 4% commission on every sale you make, in addition to your wage of $8.50/hour.  After a long seven-hour shift, your sales totaled $1250.  What are your total earnings for that shift?

Example 2

The Sports Shmauthority is having an amazing sale on all of their winter gear, 65% off the regular price. You find the snowboarding jacket that you have been wanting for the past year. It was $220 before the sale. How much is it now?

Example 3

All sweaters are 30% off of the original price. You, being the clever shopper you are, also have a coupon for 15% off any item, including sale items. How much does a $75 sweater cost?

Example 4

Sales tax in the state of California is 9.25%. After shopping at a Shmarget in Laguna Beach, your purchases came to $62.75, before tax. How much do you end up paying, including tax?

Example 5

Sweet! Jeans at American Shmeagle are 40% off. How much will you pay for a pair of jeans that were originally $80? (don't forget the 9.25% sales tax)

Look Out: always calculate the discount before adding in the sales tax

Example 6

You invest $200 in a savings account that earns 4% interest each year. If you do not touch the account for three years, how much money will you have in your account after those three years?

Example 7

After a particularly nice lunch, your bill comes to $44.75. You and your two friends split the bill equally. How much do you each owe? (Don't forget to add in a 20% tip!)

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