Unit Rate/Constant Proportionality
Percent Of Number
Ratio/Rate
Percent Change
Conversions
100
Two key words for unit rate
each and per
100
Proportion template for percent of a number
100
What are the two _________ compared, which are usually in the same sentence
ratios
100
Write the template for percent of change proportions including labels
100
Find in your resource and locate
How many grams are in milligrams
1 gram = 1000 milligrams
200
Formula for Constant proportionality
K=y/x
200
Sales tax is what to the total?
Tip is what to the total?
Discount is what to the total?
added
added
subtracted
200
Only set up the proportion
If you pay $425 for 4 days, how much money will you make in a week?
$ 425 x
D 4 7
200
What number would not be used in a percent change proportion from the following scenario
A shampoo cost was $3.00, the same bottle had a markup at the store to $3.75. What is the percent increase in the price of the shampoo?
$3.75
200
Sandy ran 10 kilometers. One mile is approximately 1.6 miles. How many miles did she run?
6.25 miles
300
A bus can travel 150 miles in 4 hours what is the constant proportionality per hour
37.5 miles
300
Neal purchases a camera for his vacation for $115. The sales tax is 5%, how much sales tax does he pay?
$5.75
300
A hardware store sells chicken wire for $16 for every 4 feet piece. A project requires 6 inches of chicken wire, how much is the cost for the project?
$24
300
At Mance Park Middle school, the number of students with dogs decreased from 250 to 170. By what percent did the number of the students with dogs change?
32%
300
Martha is 5 foot 4 inches. Two inches is approximately five centimeters. How tall is she in centimeters?
160 centimeters
400
Hours Worked 10 15 20 25
Earnings 140 210 280 350
Constant proportionality for earning per hour
14 per hour
400
Orlando buys a hat for $10 and a t-shirt for $22.75. If the sales tax is 6% what is the total price he pays at the store?
$34.71
400
At the local bakery they can only sell 9 out of every 10 cupcakes to customers. If they bake 500 cupcakes, how many will they be missing to fill the 500 cupcake order for the party?
50
400
A tv cost $1200 but on black Friday is was marked as $750. What is the percent decrease of the cost of the tv?
37.5%
400
A European made a care has 40 liter gas tank. Gas costs $3.50 per gallon. How much does it cost to fill this car's tank? (1 liter= 0.264 gallons)
$39.96