Unit Rates
Brandon bikes at a rate of 8 1/2 miles every 1/2 hour. What is his unit rate in miles per hour?
17 miles per hour
Kenny had 10 pencils at the beginning of the year. At the end of the year he had 7 pencils left. What is the percent decrease?
30% decrease
What is 100% of 17,890?
17,890
Markdown: 20%
What is the new price?
$12.00
How do you know a graph represents a proportional relationship?
The graph includes a straight line that goes through the origin.
A student can type 175 words in 5 minutes. What is the unit rate?
35 words per minute
What is 0.07% written as a decimal?
0.0007
What is 10% of 120?
12
Original price: $45
Mark Up: 66%
What is the new price?
$74.70
How do you find the constant rate of change in any situation?
y divided by x
A bag of m&ms weigh 4 ounces and cost 60 cents. What is the unit price?
15 cents per ounce OR $0.15 per ounce
What is 0.1456 as a percent to the nearest tenth of a percent?
14.6%
Megan bought a dress priced at $40. The sales tax rate is 8%. How much is the sales tax?
The sales tax is $3.20.
Ms. Robertson went to dinner last night
and her bill was $32.12 and she tipped
her waitress 20%. How much was her
bill total after the tip?
$38.54
You are given a point (20, 40). What is the constant of proportionality?
k = 2
A shopper bought a 12-pound bag of apples for $21.25. What was the unit price?
$1.77 per pound
If a price is increased by 200%, what is true?
a.The price is doubled
b.The price is tripled
c.The price increases by $200
100 + 2(100) = 100 + 200 = 300
100 to 300 is triple the amount
Mr. Durham went shopping and bought a new suit for $129.15 and the sales tax was 9%. How much did he pay total for the suit?
$140.77 in total
The band had a total of 48 students last year. The number of students in band increased by 9%. How many students are in band now?
52 students
You are saving at a constant rate of $70 for every 2 days. How much would you save after 5 days? How much would you save after 9 days?
5 days = $175
9 days = $315
Megan bought 6 tank tops for $34.50. Using the unit rate, how much would 8 tank tops cost?
$46.00 for 8 tank tops
Jasmine got a raise from $8.50 per hour to $10.00 per hour. What is the percent increase rounded to the nearest whole percent?
18% increase
The Anderson family went out for dinner. Their bill was $156.20. They had a 30% off coupon, and then left a 15% tip. How much did the Anderson's pay in total?
$122.74
An xbox costs $150 dollars. The price is reduced 35% for a sale. How much is the savings? How much would you pay for the xbox after the discount?
Your savings: $52.50
What you pay: $97.50
Write four ordered pairs that represent the graph of the equation y = 7x.
(1, 7)
(2, 14)
(3, 21)
(4, 28)
.... continued