Problems
The hamster walked x feet. The guinea pig walked 1/4 more than that.
Write an equation that represents the situation.
What is y = 5/4x?
or: y = 1 1/4x, y = 1.25x
You pay $3.49 for a gallon of gasoline. This is 90% of the price of a gallon of gasoline one year ago. What was the price of a gallon of gasoline one year ago?
What is $3.88?
What is the sales tax when a skateboard costs $40 and has a sales tax rate of 4%?
What is $1.60
Julie went to Bertucci's last night for dinner. Her meal costs $24.20 and she leaves a $3.63 tip. What percent tip did she leave for her waiter?
What is 15%?
The report said the parking lot held 240 cars, but we counted only 200 parking spaces. What was our percent error?
What is 20%?
A parka that sold for $65 is marked up to $70.20. What is the percent of markup?
What is 108%?
Carlos is buying a new ride on lawn mower and will be borrowing $2000 from the bank at a 12% rate for 5 years. How much interest must he pay?
$1200
Julia threw x number of pitches in baseball practice. Jacob threw 1/5 fewer than that.
Write an equation that represents the situation.
What is y = 4/5 x?
You must attend a minimum of 85% of the practices in order to play in the playoffs. You have made 37 of the 42 practices. Will you be able to play in the playoffs?
What is, Yes, because you will have made 88% of the practices?
A belt costs $23.00. The sales tax on the belt is $1.38. What percent of sales tax were you charged?
What is 6%
Kylie spends $18 on a 16% tip. What was the amount of the bill before the tip?
What is $112.50?
Lauretta sold $460 worth of clothes at Blake Department Store and earned a commission of $14.72. What is her commission rate?
What is 3.2%
A grocery store has a 60% markup on a can of soup. The can of soup costs the store $1.50. What is the selling price for the can of soup?
What is $2.40?
Mae wants to buy a new car. She borrows $30,000 for an interest rate of 15.5% for 8 years. How much interest will she have to pay?
$37200
Sadie swam x laps in the pool. Sam swam 2/3 less than that.
1. Write an equation that represents the situation.
2. When x = 10, what is y?
1. What is y = 1/3 x?
2. What is y = 3 1/3?
You earn a score of 86.8 on a standardized exam. Your score is 140% of your friend's score on the standardized exam.What is your friend's score?
What is 62?
You are charged 6% sales tax. You purchase a new bicycle and pay $27 in sales tax. What is the total price of the bicycle including tax?
What is $450
Michael’s bill at a restaurant was $46.32. He wants to leave a 17% tip. What will the total bill be, including tip?
What is $54.19?
Jose thought his commission would be $450 for the sale he made, but it was only $375. What was his percent error?
What is 20%?
1. The regular price of a Space Invader game is $52, but it is on sale. The discount is $18.20.
What percent discount is this?
2. If the regular price of an item is x dollars, what is the discount price in dollars?
1. What is 35%?
2. What is 0.65x or What is x - .35x?
Jessie invests $3345 in the stock market. Over the 3 years she has this invested she gets an average return of 7.8% each year. How much will her investment be worth after the 3 years?
What is $4127.73?
Pryia has a recipe for banana bread. She uses 7 and 1/2 cups of flour to make 3 loaves of banana bread. Andre follows the same recipe. He makes b loaves of bread using f cups of flour. Which of these equations represents the relationship between b and f?
A. b = 2/9 f
B. b = 2/5 f
C. b = 5/2 f
D. b = 9/2 f
What is B: b = 2/5 f?
During a given month, there was a total of 23.6 inches of rain. This was 250% of the average rainfall for that month. What is the average rainfall for that month?
What is 9.44 inches?
You bought new sneakers for $81.12 including tax. The price before tax on the sneakers was $78. What percent of sales tax were you charged?
What is 4%?
At a restaurant you only have $30 to spend on dinner. In addition to the cost of the meal you must pay an 8% sales tax and leave a 20% tip. What is the most expensive item you can order?
What is $22.43?
Marcy and Jill sell insurance policies. They each earn a commission rate of 4% on their sales. One week, Marcy sells $1650 in insurance. The same week, Jill sells $1495 in insurance. How much more commission does Marcy earn for the week?
What is $6.20 more
Best Buy was having a 20% off sale on all flat screen TVs. For special customers who had a coupon, there was an additional 15% off after the 20%. YOU are a special customer. How much does a $1350 TV cost you?
What is $918?
Taylor has just won $4,250 from the 50/50 at the Sea Dog's game and decides to invest all of it. If he makes $1275 with a 5% interest rate, how long must he have had the money invested?
6 years
Peyton ran x miles, and then ran 2/5 of that again.
Write two expressions that represent the situation.
Any two of these:
What is: x + 2/5x
1.4x
1 2/5x
x(1 + 2/5)
To maintain an acceptable level of chlorine in your pool, you add 1.4 gallons of chlorine. This is 0.007% of the amount of water in your pool. How many gallons of water are in your pool?
What is 20,000 gallons
Maggie and Laura go out to lunch at TGIFridays. The bill for their restaurant meal is $22. They decide to leave a 15% tip. The sales tax is 6%. Compute both tip and sales tax on the $22. How much does each girl pay?
What is $13.31
You and five friends go to Cheesecake factory for your birthday. The total bill comes to $243. You want to tip 20% and the tax is 6%. Compute both tax and tip on the $243. How much does each person owe?
What is $51.03
Mr. Li and Ms. Brown both sell used cars. Mr. Li sells a car for $9950 and earns $447.75 commission. Ms. Brown sells a car for $10,300 and earns $453.20 commission. Who earns a greater commission rate, and by how much?
What is Mr. Li?
What is 4.5% - 4.4%, or 0.1% more?
Juanita borrowed $1575 from her parents for car repairs. She plans to take 12.5% of her $450 weekly income to pay them back. At this rate, how many weeks will it take her to pay off the loan?
What is 28 weeks?
Morgan has an investment worth $130,000 dollars after 20 years. If his original investment was for $50,000, then what must the interest rate have been?
What is 8%?