Unit 3 rates, proportions and percentages Created by Educational Technology Network. www.edtechnetwork.com 2009

Proportional relationships POWERPOINT JEOPARDY Unit Rate Proportional relationships Anything goes percentages More Anything goes 10 10 10 10 10 20 20 20 20 20 30 30 30 30 30 40 40 40 40 40 50 50 50 50 50

What is the unit rate if there are 840 Calories in 6 servings Unit Rate– 10 Points What is the unit rate if there are 840 Calories in 6 servings

Unit Rate– 20 Points A cheetah can run at a speed of 120 km per hour. How many miles per minute is this?

Unit Rate– 30 Points Find the best buy and give the cost per ounce for the can of juice concentrate. Brand A: 10 oz for $1.30 Brand B: 12 oz for $2.42

Unit Rate– 40 Points At the school store, 4 pencils sell for $.75. At this rate, if Dana has $2 will she be able to buy 12 pencils?

Unit Rate – 50 Points Sara counted her heartbeats after running. In 10 seconds, she counted 22 heartbeats. At that rate, what was her number of heartbeats per minute (60 seconds)?

Proportions – 10 Points =

What is the constant rate of change of the table below? Proportions– 20 Points What is the constant rate of change of the table below? miles 165 220 330 495 hours 3 4 6 9

Cameron works on the weekends. The equation Proportions – 30 Points Cameron works on the weekends. The equation y = 9x represents the amount of money he earns. What is the constant of proportionality?

What is missing from the table of equivalent ratios? Proportions– 40 Points What is missing from the table of equivalent ratios? x y 6 9 10 15 12 18 ? 27 22 33

The below are the price for two magazine subscriptions. Proportions – 50 Points The below are the price for two magazine subscriptions. Magazine Subscriptions Number of issues Price (pre dollar) 4 x 24 72 What is the value of x and the unit rate?

Anything goes – 10 Points What are the two requirements for a graph representing a proportional relationship?

Anything goes – 20 Points Alyssa scored 19 correct on a test. If she received a 95% on the test how many questions were on the test?

Anything goes– 30 Points What is the simple interest paid on $1200 at a 4.5% rate per year for 4 years?

Anything Goes – 40 Points The school is selling Chick-fil-a for $2.50 but had some left over so they reduced the price by 20%. What is the new price of the biscuit?

Anything – 50 Points The graph below shows a proportional relationship. What is the constant of proportionality?

Percent – 10 Points Kari’s lunch bill came to $8.57 and she wants to leave the server a 20% tip. Ho much should she leave the server?

Percent – 20 Points Joanne’s favorite perfume is Bella from Mary Kay. It cost 29.99 with a sales tax of 6% for Cobb County. What is the total cost of the perfume?

Percent– 30 Points Walmart is having a sale on their online play-station games. Star Wars Battlefront was $59.99 and is now $39.96. What is the markdown percent?

Precent – 40 Points Best buy is having a sale on televisions. The original price of the tv is $567. If it is on sale for 45% off what will be the sale price of the tv?

Percent – 50 Points Barbara has $45 to buy a new pair of boots. The original price of the boots is $69. They are 40% off. Does she have enough money to buy the boots?

More Anything goes– 10 Points Given the table that represents a proportional relationship, what would be the constant equation? x y -2 -4 2 4 8

More Anything Goes– 20 Point A house was drawn using a scale of 3 in = 6 ft. If the height of the drawing is 9.5 what is the height of the actual house?

More Anything goes– 30 Points A car salesman sells a car for $52,100. If his commission is 13.8%, how much did me make on his sale?

More Anything Goes– 40 Points Chairs are being arranged in rows for an assembly in the cafeteria. The same number of chairs are in each row. If there are 324 chairs in 9 rows, write an equation used to determine y, the total number of chairs in x rows.

More Anything goes– 50 Points A family has borrowed money for home improvements. The loan was for $3000. The interest was 5%