Ratios
What are the 2 ways to find an equivalent ratio?
Multiplying and Dividing
15 gallons of gas for $51 or 7 gallons of gas for $24.50
15 gallons of gas for $51 Unit price = $3.40
Anna earns $12 in 3 hours. How much does she make in 1 hour?
$4
Jose bought 6 used books at a total cost of $24.00. What is the unit rate, in dollars, for the books?
$4.00
Are 2/3 and 4/6 equivalent?
Yes, equivalent, 2 x 2 = 4, 3 x 2 = 6
A grocery store sells two brands of orange juice. Sunny Sip costs $4.50 for 9 ounces, and Citrus Fresh costs $5.60 for 14 ounces. Which brand is the better buy? Explain your reasoning.
Citrus Fresh = $0.40 per ounce
Henry reads 8 pages in 6 minutes, then he reads 40 pages in how many minutes?
30 minutes
How many feet are in 78 inches?
6.5 feet
Are 4/7 and 36/63 equivalent?
Yes equivalent, 4 x 9 = 36, and 7 x 9 = 63
A store sells two packages of cereal. One package is 50 ounces for $7.50, and the other is 3.5 pounds for $10.50. Which package is the better buy?
(Note: 16 ounces = 1 pound)
The 50-ounce package is the better buy because it costs $0.15 per ounce
A recipe for fruit punch calls for 3 cups of orange juice for every 2 cups of pineapple juice. If you want to make a larger batch using 12 cups of orange juice, how many cups of pineapple juice will you need to keep the same ratio?
8 cups of pineapple juice
A train travels 300 miles in 5 hours. If it continues at the same constant speed, how far will it travel in 7 hours?
420 miles
A farmer used 12 buckets of corn to feed the chickens and 9 buckets of oats to feed the horses. Write a ratio that compares the number of buckets of corn to the number of buckets of oats.
12:9, 12 to 9 , 12/9
Are 14/15 and 42/45 equivalent?
Yes equivalent, 14 x 3 = 42, 15 x 3 = 45
Who earned more each month? Jessica, who earns $84 over 3 months, or Jhostin, who earns $100 over 4 months?
Jessica with $84 over 3 months.
Emma and Mia are selling cookies at a bake sale. After 2 hours, they have earned $12 for selling a total of 24 cookies. What is the unit rate per cookie?
$0.50 per cookie.
Greenwood Middle School has 420 students. If 65% of the students ride the bus, how many students ride the bus?
273 students
Marcus mixed red and yellow paint to create orange for an art project. He used 5 parts of red for every 3 parts of yellow. If he has 40 parts of red paint, how many parts of yellow paint does he need to keep the same ratio?
24 parts or yellow paint
Are 1/6 and 2/7 proportional?
Not Equivalent
A store sells two brands of chocolate bars. ChocoDelight is $5.00 for 8 ounces and SweetTreats is $6.50 for 12 ounces. Which brand is the better buy? Explain your reasoning.
SweetTreats is the better buy because it costs less per ounce than ChocoDelight.
$0.54 per ounce.
A veterinarian uses weights in kilograms to figure out medicine dosages for animals. For every 5 kilograms, there are 11 pounds. Bella is a guinea pig and weighs 3 pounds. What is her weight in kilograms? Round to the nearest hundredths.
Bella weighs approximately 1.36 kilograms.
Carlos played 6 rounds of a carnival game and won 18 tickets. How many rounds will he need to play to earn 144 tickets to get the prize he wants?
48 rounds