Ratios

1

• Ratios
• Practice

2

• Watch me
• The ratio of boys to girls in Mrs. Nelsons
  classroom is 2 to 3. If there are 8 boys, how
  many girls are there?

3

• A recent survey found that the ratio of people
  who prefer Pepsi to Coke is 3 to 4. If the survey
  showed that 36 people preferred Pepsi, how many
  people preferred Coke?

4

• The ratio of oranges to apples in Maryannes
  fruit basket was 5 to 3. If the ratio remained
  the same and Maryanne had 45 oranges, how many
  apples did she have.

5

• Watch Me
• Carlita found that the ratio of Twizzlers to
  Snickers in her Halloween bag was three to seven.
  If Carlita counted 56 Snickers, how many
  Twizzlers would there be?

6

• The ratio of water to bleach for a cleaning
  solution is 4 to 1. If you pour in 8 cups of
  bleach, how much water should you pour in?

7

• A bag of MMs has a brown to red ratio of 5 to 3.
  If the bag has 15 red MMs, how many brown MMs
  are there?

8
Question 1

• The ratio of Pikachu dolls to Sqirtle dolls at
  the comic book shop was 5 to 2. If there were 35
  Pikachu dolls, how many total dolls were at the
  store?

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Question 2

• The ratio of shirts to pants in the display
  window at Kohls was three to one. If there were
  4 pairs of pants on display how many total pieces
  of clothing were there?

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Question 3

• The ratio of sunny days to rainy days in the year
  so far has been 7 to 2. If there have been 84
  sunny days, how many total days have there been?

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Question 4

• The ratio of Vampire Diaries episodes to episodes
  of The Originals is 5 to 4. If 20 episodes of
  The Originals have aired, how many total episodes
  of both shows have aired?

12
Question 5

• The ratio of 1 hits to unreleased songs on
  Taylor Swifts last album was 1 to 4. If there
  were 16 unreleased songs on her last album, how
  many total songs where on her album?

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Checkpoint

1. You will need an index card, pencil, and
   calculator.
2. Put your name, date and class period on the top
   line of the index card.
3. Divide your index card into 3 equal columns (use
   2 vertical lines)
4. Label each section numbers 1 3
5. Do not write on the back of the card
6. Wait patiently for everyone to set their card up

14
Show me what you learned

• Answer these 3 questions on your card. (SHOW ALL
  WORK)
• The ratio of iPhones to Samsung Galaxy phones in
  the classroom was 5 to 3. If there were 10
  iPhones in the classroom, how many total phones
  were in the classroom?
• Sharron determined the ratio of people who like
  The Voice to those that dont was 6 to 1. If 48
  people like The Voice, how many people were
  asked?
• Mr. Seymore was looking through his movie
  collection and realized the ratio of anime DVDs
  to Pixar DVDs was 3 to 2. If there were 45 anime
  DVDs, how many total DVDs were in his collection?
  

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Question 6

• 4 out of 9 people say they like the show Sailor
  Moon. If 801 people were asked, how many people
  could be predicted to like Sailor Moon?

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Question 7

• A survey showed that 5 out of 7 people prefer to
  wear the color black. If 1290 people prefer to
  wear black, how many people were asked?

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Question 8

• 2 out 3 people like Superman over Batman. If
  1236 people were asked if they liked Superman or
  Batman, how many could be predicted to like
  Batman over Superman?

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Question 9

• The results of a recent survey showed that 8 out
  of 11 students prefer red slushies. If 784
  students prefer red slushies, how many students
  are there?

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Question 10

• The results of a recent survey showed that 2 out
  of 5 people think Thor would win in a fight
  against Captain America. If 780 people were
  asked this question, how many could be predicted
  to vote for Thor?

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Checkpoint 2

1. You will need you index card, pencil, and
   calculator.
2. On the blank side of your card, divide your index
   card into 3 equal columns (use 2 vertical lines)
3. Label each section numbers 4 6
4. Wait patiently for everyone to set their card up

21
Show me what you learned

• Answer these 3 questions on your card. (SHOW ALL
  WORK)
• 4. A recent survey revealed the 2 out of 5 people
  prefer Taco Bell breakfast. If 600 people were
  asked, how many could be predicted to prefer Taco
  Bell breakfast?
• 5. 7 out of 9 people have an iPhone as their
  cell phone. If 105 people have iPhones. How
  many people have phones?
• 6. A recent survey showed that 3 out of 7 people
  like Ariana Grande. If 315 people were asked,
  how many could be predicted to like Ariana
  Grande?