Percent of a number
what is 25% of 10?
2.5
uA regular candy bar is 4 inches long. A king size candy bar is 75% longer. How long is the king size candy bar?
7 inches
Mr. Melendez has 30 students in his class. Ms. Malen has 20% less. How many students are in Ms. Malen’s class?
24 students
Mr. Melendez measured his desk and measure 2.5 feet. The actual measurement is 2.6 feet. What is the percent of error?
3.8%
For every 5 candies Carla sells she makes $6.25. What is the Constant of proportionality for this relationship?
1.25
12.5% of 40
5
7 thousand people visited a book fair in the first week. The number of visitors increased by 20% in the second week. How many people visited the book fair in the second week?
8,400 people
Last year the yearbook had 1,300 pictures of students. This year there was a decrease of 5%. How many pictures of students are in the yearbook?
1,235 students.
Carlos measured his bed and it measured 360 inches. The actual measurement is 375 inches. What is the percent of error?
4%
A circular running track is 1/5 mile long. Ashley runs on this track, completing each lap in 1/15 of an hour. What is her speed?
3 miles an hour.
20% of 425
85
A car is measured at 8ft tall. A truck is measured to be 25% taller. How tall is the truck?
10 feet tall
The discounted price of a soda can is 1.00. If the discount was 20% what was the original price?
1.25
A company cuts wood to build houses. An employee cut a piece of wood at 6.5 ft when he needed a cut of wood at 6 feet. what is the percent of error?
8.33%
Carlos has a recipe for lemonade. He uses 2 ½ cups of sugar to make 10 batches of lemonade. Andy will follow the same recipe. He will make B batches of lemonade using S cups of sugar.
Make an equation representing the relationship.
B=4S
35% of 64
22.4
When at a restaurant Mr. Jones bill totals at 48.00. There is a 6% tax. How much is Mr.Jones paying?
$50.88
Carlos went to buy some shirts. The store has a 10% off sale. He finds a shirt that is originally priced at 20 dollars. how much is he paying for the shirt before taxes?
$18
A candy company packs 20 candies per box. A customer received a box with only 19 candies in it. What is the percent of error?
5%
Ms. Malen is selling T-shirts for drama club. she sells a total of 34 shirts and makes $586.50. What is the constant of proportionality?
$17.25 per shirt
33% of 22
7.33
Ms.Flores went to Costco to buy muffins. The total comes to $8.00. She has a 25% coupon. Then a 6% tax is applied. How much does Ms.Flores pay for her muffins?
$6.36
Maria buys a pair of pants at a different store with a 30% discount. If the cost of the shirt is X. What is the discount price? Write an equation.
0.7x or (x−0.3x)or 7/10x
A house was built to be 24.4 ft tall. The House was suppose to be 25 ft tall. What is the percent of error?
2.4%
There is a bake sale going on at Robison middle school. They are selling cookies, brownies, and cakes. There are twice as many cookies as there are brownies. There are triple as many brownies as there is cakes. There are 5 cakes. how many cookies are there?
30 cookies