Ratio + Proportions Recap

Multiple Choice

What is a Ratio?

• Is a comparison of two quantities 
• A rate with a denominator of one
• It is when the only factor the numerator and denominator share is a one 
• Two decimals that can be multiplied

Multiple Choice

The cookie jar has six chocolate chip cookies and five oatmeal cookies. What is the ratio of oatmeal to chocolate chip cookies?

• 6:5
• 5:6
• 6:11
• 6:11

Multiple Choice

Enter the missing numbers to create equivalent ratios. 
1 : 3
6 : 18
2 : _
4 : _

• 4 & 8
• 4 & 12
• 6 & 12
• 6 & 8

Multiple Choice

In my fish tank, the ratio of red fish to blue fish is 3:5. There are 20 blue fish. How many red fish are there?

• 18
• 12
• 4
• 15

Multiple Choice

If Justin can type 408 words in 4 minutes, how many words can he type per minute?

• 102 words per minute
• 100 words per minute
• 400 words per minute
• 412 words per minute

Poll

Choose wisely.

• Michelangelo

• Donatello

• Leonardo

• Raphael

Multiple Choice

Solve the proportion.

• k=5
• k=3.3333333
• k=60
• k=90

Multiple Choice

Tommy has a bag of LEGOS.  There are 6 yellow, 3 red, and 8 blue LEGOS.  What is the ratio in simplest form of red to yellow LEGOS?

• 1/2
• 6/3
• 2/1
• 3/6

Multiple Choice

Solve the proportion.

• -3

• -1.5

• 2.1

• 9

Multiple Choice

IN ADVENTURE TIME, WHAT ANIMAL IS JAKE?

• CAT

• MOUSE

• DOG

• HAMSTER

Multiple Choice

• x = 1/24
• x = 29
• x = 28
• x = 3/2

Multiple Choice

A store sees 120 customers in 8 hours. What is the unit rate (in customers per hour)?

• 16 customers per hour
• 15 customers per hour
• 12 customers per hour
• 20 customers per hour

Ratio Reminders

• Don't forget to reduce your fractions!

• We will typically use fractions when discussing ratios and proportions.

• Double check to make sure you're in the same unit measure!!!

Poll

Would you rather...

• Hear others' thoughts

• See the future

Multiple Choice

Convert 1,800 grams to kilograms.

• 18 kilograms

• 1.8 kilograms

• 180 kilograms

• 0.18 kilograms

Multiple Choice

Convert 565,900 seconds into days.

• 4.5 days

• 5.5 days

• 6.5 days

• 7.5 days

Multiple Choice

Convert 62 miles/hour to feet/second

• 5,456 feet/second

• 0.003 feet/second

• 90.9 feet/second

• 909 feet/second

Multiple Choice

WHO IS THE STRONGEST HERO in the MCU

• Hulk

• Captain Marvel

• Iron Man

• Silver Surfer

• All Of the Above

Multiple Choice

Convert 20 tons/year to ounces/day

• 0.0004 ounces/day

• 6.8 ounces/day

• 109.6 ounces/day

• 1,753.42 ounces/day

Multiple Choice

A bicycle has a speed of 6 meters/second. What is its speed in kilometers/hour?

• 21.6 kilometers/hour

• 16.67 kilometers/hour

• 2.16 kilometers/hour

• 1.67 kilometers/hour

Extended Ratios

• When a ratio involves three or more quantities

• Notice how we setup a problem like this

Open Ended

A triangles sides have an extended ratio of 3:5:6. The perimeter is 98. What is the correct setup?

Multiple Choice

You should have a setup of 3x+5x+6x=98. Now solve for x and find the shortest side

• 21

• 35

• 42

• 180

Poll

Netflix or Hulu?

• Netflix

• Hulu

Multiple Choice

The ratio of the measures of the sides of a triangle is 4:9:8. If the perimeter of the triangle is 147 feet, find the measure of the shortest side.

• 18 feet

• 28 feet

• 36 feet

• 42 feet

Multiple Choice

A triangle’s angle measures are in the extended ratio of 3 : 4 : 11. Find the measures of the angles.

• 30^o, 40^o, 90^o

• 30^o, 40^o, 110^o

• 10^o, 30^o, 140^o

• 40^o, 40^o, 100^o

Multiple Choice

A triangle’s angle measures are in the extended ratio of 2 : 4 : 9. Find the measures of the angles.

• 20^o, 40^o, 90^o

• 24^o, 48^o, 108^o

• 24^o, 32^o, 124^o

• 20^o, 40^o, 100^o

Draw

Draw me a picture.