Percent of Whole is Part
45 is what percent of 90?
50%
Before a renovation, a movie theater had 149 seats. After the renovation, the theater has 186 seats. What is the approximate percentage increase of the number of seats in the theater? If necessary, round to the nearest tenth of a percent.
24.8%
A store owner paid $15 for a book. She marked up the price of the book by 40% to determine its selling price. What is the selling price, in dollars, of the book?
$21
Write an equation for the following:
20% of a number n
0.2n
If you invest $800 at an interest rate of 5%, how much money will you have after one year?
$840
One day, the appliance store offers a $50 discount on all purchases over $300. The store also has a sale with 15% off the price of all refrigerators. The 15% discount is applied after the $50 discount. What is the price, in dollars, of a $435 refrigerator after both discounts?
$327.25
What number is 70% of 45
31.5
On Thursday, 105 Union Hill students went to after-school tutoring. On Friday, 21 students went. What is the percent decrease in the number of students who went to tutoring?
80%
The price of a motorbike is $1,500. How much do you need to pay if you get a 10% discount?
$1,350
Write an equation for the following:
a 25% discount on a $t T-shirt
0.75t
alt.: t-0.25t or (1-0.25)t
Martha invested a principal amount of $15,000 into a savings account that earns simple interest at a rate of 4.5% per year. How much money will she earn in interest over 6 years?
$4,050
Fergie buys a book that has an original selling price of $38. The book is discounted 25%. The customer must pay a 6% sales tax on the discounted price of the book. What is the total amount, in dollars, the customer pays for the discounted book?
$30.21
15 is 25% of what number?
60
Mr. Abbato opened a new retail store. During the first week, 450 customers visited the store. During the second week, 500 customers visited the store.
What is the percentage change of the number of customers that visited the store in the first week to the number of customers that visited the store in the second week?
11.11% Increase
An item is priced at $13.21. If the sales tax is 8%, what does the item cost including sales tax?
$14.27
Write an equation for the following:
A 42% markup on a couch that costs $x
1.42x
alt.: x+0.42x or (1+0.42)x
Enrique borrows $250 from his older sister to buy a bike. He promises to pay the total plus 6% simple interest in two years. How much will Joshua pay back altogether?
$280
A family of five went out to dinner at HogTastic Pit BBQ. They all ordered the buffet and drink at $12.80 each. They left a 15% gratuity for the waitress on the after-tax bill. Based on a tax rate of 7.5%, how much did the dinner cost altogether?
$79.12
0.5% of 490 is what number?
2.45
Andrew estimates that a package weighs 54 pounds. The postal clerk weighs it and finds it weighs 40 pounds. What is the percent error in Ron's estimate?
35%
A store buys each pair of Lucky jeans from a distribution company for $15.00 and adds a 135% markup to the cost. What is the selling price of the jeans?
$35.25
Write an equation for the following:
A $f meal with 7% tax and a 10% tip
1.177f
$400 interest is earned on a principal of $2,000 at a simple interest rate of 5% interest per year. For how many years was the principal invested?
4 years
It's the end of the soccer season and all equipment at the Sports Stop is on sale. All soccer equipment is on sale for 25% off the regular price. Additionally, Sam found a coupon for an additional 10% off the price of sale items. What is the sale price of a soccer ball that regularly sells for $14 after the discount and coupon?
$9.45
A worker at the zoo calculates the amount of fish, in pounds, needed in the weekly diet of an eagle. The eagle eats 6 pounds of food each week, and 60% of that weight must be fish. What is the total amount of fish, in pounds, that the eagle should eat each week?
3.6 lbs
A bakery sold 107 cupcakes in one day. The head baker predicted he would sell 87 cupcakes that day. What was the percent error of the baker's prediction?
18.69%
An appliance store sells an oven for 20% off the original price. The sale price is $180, not including tax. What is the price of the oven, not including tax, before the discount is applied?
$225
The price of a certain item is P dollars. The sales tax on the item is 5%. List three ways to write this equation
P + 0.05P, (1+ 0.05)P, 1.05P
You invested $900 and received $1,548.00 after nine years. What was the interest rate?
8%
A salesperson earns commission on the sales that she makes each month. The salesperson earns a 5% commission on the first $5,000 she has in sales. The salesperson earns a 7.5% commission on the amount of her sales that are greater than $5,000. This month the salesperson had $8,000 in sales. What amount of commission, in dollars, did she earn?
$475