Ratio + Proportions Recap

Presentation

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Mathematics

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10th Grade

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Practice Problem

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Medium

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CCSS

6.RP.A.1, 5.MD.A.1, 8.G.A.5

Standards-aligned

Samantha Kelsey

Used 2+ times

FREE Resource

4 Slides • 26 Questions

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

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?

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

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?

Type response here

Multiple Choice

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

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.

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

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