First things First
U UP OR DOWN?
Part vs Whole
Interest is Supposed to be Simple
Potpourri
100
In a simple interest problem, the first step is to change the percent into a _____________.
What is a DECIMAL.
100
A year ago Scott was 60 inches. He grew and now is 63 inches tall. Is this a percent increase or decrease?
What is increase
100
The proportion (formula) for a part vs whole problem.
What is part/whole = percent/100
100
If the interest is calculated MONTHLY, 4 years is how many months?
What is 48 months.
100
Miguel wants to invest $5000 at a 2.5% MONTHLY interest. How much simple interest will he make in 2 YEARS?
What is $1500
200
When setting up a percent proportion, the ____________ is the numerator and 100 is the denominator. part/whole = ??/100
What is PERCENT .
200
Mrs. Garbach's sleep total was reduced from 10 hours per night to only 6. What proportion would you set up to find the TOTAL percent and then percent DECREASE?
What is 6/10 = x/100
200
Morgan received a 78/80 on her last test. What percent of the questions did she get right?
What is 97.5%.
200
Azaria deposited $150 in the bank that has at 5.3% interest a year for 4 years. How much did he earn in interest?
What is $33.
200
Brittany won 10 basketball games. This was 62.5% of all her games. How many games did she have this season?
What is 16 games.
300
In a percent increase problem, the first step is to ___________ 100% to find the TOTAL percent. Jonquil increase his grade by 15%, the total percent would be?
What is ADD, 115% .
300
At the beginning of the school year, Aekta's allowance was $8/week. After working really hard all school year, her parent's decided to give her a 30% raise. How much money does she get? How much more money does she get than before?
What is $10.40 and $2.40
300
Vanessa took her sister out to eat at Applebee's and the bill was $57.80. She had a great server and wants to leave a 20% tip. How much should she leave as tip?
What is $11.56
300
Stephanie borrowed $4000 from a bank the charges 8% simple interest. After 2 years she paid off the loan. What was the TOTAL amount she repaid?
What is $4640.
300
Tyree makes 60 of his free throws and wants to increase his percent of free throws he makes by 28%. Which one of these problems can he set up to find the total number of free throws he should make? a) Multiply 60 by 1.28 b) divide 60 by .28 c) solve for x: 60/x = 28/100 d) solve for x: x/60 = 128/100
What is a and d
400
In a percent decrease problem, the first step is to ___________ the percent decrease from 100% to find the TOTAL percent. Olivia decreased the number of times she disrupts class by by 25%, the total percent would be?
What is SUBTRACT, 75% .
400
Robby's total miles he ran for the week, increase from 5 miles to 14 miles, by the end of the track season. What was his TOTAL percent and his percent INCREASE?
What is 280% and 180%.
400
Maria brought 52 pieces of candy to share with her class. If this represents 48% of her total candy she received on Halloween, set up a proportion to find how much candy she received on Halloween.
What is 52/x = 48/100.
400
Sophie took out a 4 year loan of $8000 at an interest rate was 8.5% a year. To find the simple interest, she set up the following problem. What was her mistake? Find the correct answer. I= Prt I=(8000)(8.5)(4)
What is she didn't change the percent to a decimal and the correct answers is $2720.
400
Jamaira receives 12 SSL hours for volunteering for the Difference Makers last month. She wants to increase her hours by 30% increase next month. How many SSL hours will she receive next month?
What is $13.00
500
A company has 200 workers and wants to increase its workers by 12%. To find the number of workers the company NOW has, Jackie set up the following proportion. What is the first step she skipped in her problem. x/200 = 12/100
What is she did not find the total percent which is 112%
500
Jenna and Ami were featured on TLC's show Extreme Couponing! While their total bill came to $246.20, with coupons their bill was only $22.16. To find their percent of decrease they set up the following problem. What is their mistake? 246.20/22.16 = x/100 22.16x =24620 x = 1111.01 1111.01-100= 1011.01
What is the fraction should be 22.16/246.2 .
500
Donovan buys new Jordan True Flights shoes at Foot Locker that cost $140. If the sales tax is 8%, find the sales tax AND total cost for the shoes.
What is $11.20 and $151.20.
500
Emily deposited $1200 in the bank that earns 1.5% interest MONTHLY. After 2 YEARS, how much interest did she earn?
What is $432.
500
Hana receives $50 a week for babysitting and is asking for a 10% increase. Rachel receives $80 a week for babysitting and is asking for 5% increase. Who will make more money after their increase?
What is Hana
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