Commack Schools



Name: ____________________________CHAPTER 6 - PERCENTSChapter 6 Test Review - Pre AlgebraSixteen of the 80 dogs at a kennel are golden retrievers. What percent of the dogs at the kennel are golden retrievers. Use a percent proportion to solve.The number of lime-flavored gumballs in a gumball machine is 85. If this is 17% of the number of gumballs in the machine, how many gumballs are in the machine? Use a percent proportion to solve.Of the 120 math tests, 47 were B’s. To the nearest tenth, what percent of the math tests were B’s? Use a percent equation to solve. Reminder: Let statementAn Aztec Salad gets 28 of its calories from protein. If this is 20% of the total number of calories, how many calories does the salad have? Use a percent equation to solve. Reminder: Let statementThe doctors estimated the weight of the baby boy to be 8 pounds. His actual weight was 6.4 pounds. Find the percent of error. Round to the nearest whole percent if necessary.Bob is buying a skate board that had an original price of $295 but is advertised at 25% off. There is a sales tax of 6.25%. How much will Bob pay for the skate board?What is the total amount of money in an account where $850 is invested at an interest rate of 8.75% compounded annually for 4 years? Round your answer to the nearest cent.In Store A, the price of a shirt is $50. The sales tax is 5.5%. In Store B, the price of that same shirt is $45 with a sales tax of 7%. Which store offers the better deal? Show all work to support your answer.Find the percent of change. Round to the nearest tenth if necessary. Then state whether the percent of change is an increase or decrease. The time went from 64 minutes to 16 minutes.The cost went from $55.75 to $75.Find the simple interest to the nearest cent.$575 at 6.25% for 7 years$800 at 5.75% for 6 months.The cost of Sophia’s bill came to $14.92. She wants to leave a 20% tip. What is a reasonable estimate for the amount she should leave for the tip?Estimate 127% of 32 (use “over 100%” method)b) Estimate 82% of 123 (use 10% method) ................
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