On the snow day, Claudia earned $20 shoveling 2 sidewalks. How much can she earn by shoveling 3 sidewalks?
She can earn $30 shoveling 3 sidewalks.
100
The scale on a map says 1 inch: 20 miles. Amaya measures the distance between NYC and Philadelphia and sees that it is 5 inches. What is the actual distance from NYC to Philadelphia?
The actual distance is 100 miles.
100
Are the following ratios proportional? How do you know?
12/15 and 18/24
No, because 12/15 simplifies to 4/5, and 18/24 simplifies to 3/4
100
A jacket usually costs $84. If it's on sale for 50% off, how much will it cost?
The jacket will cost $42.
100
Last year the 6th grade had 350 students. This year there are 420 students. What is the percent of change?
The percent of change is 20% (Or the number of students increased by 20%).
200
On the weekends, Mrs. Samaan plans one-quarter of her lessons in one hour. How long will it take her to plan all of her lessons?
It will take her 4 hours to plan all of her lessons.
200
James is building a model car with a scale of 1 in. :3 ft. If the model car is 5 inches long, how long is the actual car?
The actual car is 15 feet long.
200
Does the image show a proportional relationship? How do you know?
Yes, because it is a straight line and goes through the origin.
200
The new Google speaker normally costs $140. If there is an 9% sales tax, how much will it cost, with tax?
With tax, the speaker will cost $152.60.
200
Last year, 180 students went on the snow-tubing trip. This year, 234 students are going. What is the percent of change from last year to this year?
The percent of change is 30%. (OR The number of students increased by 30%).
300
Celina runs 7/2 miles in 2/3 hour. What is her unit rate, in miles per hour?
Her rate is 5 1/4 miles per hour (or 21/4 miles per hour).
300
Azamjon is making a scale drawing of his future house. The scale of the drawing is 2 in. : 12 ft. If the living room in his scale drawing is 6 inches long, how long will his actual living room be?
His actual living room will be 36 feet long.
300
What equation (in the form y = kx) represents the graph?
The equation is y = 6x
300
Abdul buys sneakers at a price of $45.90 per pair, and sells them in his store at a 30% mark-up. How much does he charge for each pair of sneakers?
He charges $59.67 for each pair of sneakers.
300
Games at GameStop usually cost $39.99. Now they are on sale for $29.99. What is the percent of change? (round to the nearest whole percent).
The percent of change is -25%. (OR the price decreased by about 25%).
400
3/4 of a recipe for Valentine's Day cookies calls for 2/3 cup of sugar. How many cups of sugar are required for a whole recipe?
8/9 cups of sugar are needed for a whole recipe.
400
The distance between NYC and Pittsburgh is 400 miles. On a map, the distance measures 16 inches. What is the scale of the map?
? in. : ? mi.
The scale of the map is 1 inch: 25 miles
400
If the relationship is proportional, what value is missing from the table?
The missing value is 2.25
400
Jessica deposits $1,250 into an account with 4.4% simple interest. How much money will she have in her account at the end of 2.5 years?
She will have $1,305 at the end of 2.5 years.
400
The average attendance at a local high school's football games went down from 2000 people in 2003 to 1500 people in 2004. What was the percent of change?
The percent of change was -25% (OR, the number of people decreased by 25%).
500
Mrs. Lopez can grade 20 tests in 1 3/4 hours. How many tests can she grade per hour?
She can grade 11 3/7 tests per hour. (Or about 11 tests per hour).
500
Mrs. Lopez is building a doll house for Ophelia that is modeled after a real house. The scale she is using is 1 inch: 3.5 ft. If the door of the actual house is 10.5 feet tall, how tall should she make the door of the doll house?
She should make the door 3 inches tall.
500
Write an equation to represent the proportional relationship shown in the graph.
y = x /5 OR y = .2x
The commission is 20%!
500
Albin goes out to dinner with friends, and gets a bill of $74.80. If he wants to leave a 15% tip, AND there is an 8.25% sales tax, how much will he pay altogether?
74.80 + 11.22 (tip) + 6.171 (tax)
=92.191
He will pay $92.19 altogether.
500
There are 18 7th graders on high honor roll this quarter, but that is a 28% decrease from last quarter. How many 7th grade students were on high honor roll last quarter?