Understanding Ratios and Scales

The video tutorial covers the concept of ratios, starting with identifying non-equivalent shapes based on width and height ratios. It then compares ratios in different trail mix recipes, illustrating how to determine if they are equivalent. The tutorial also explains how to choose appropriate scales for drawing various objects, such as a person, a football field, and a state. Finally, it demonstrates how to find and explain equivalent ratios using multiplication.

Which shape is different based on the given width and height ratios?

• Shape C

• Shape D

• Shape B

• Shape A

What is the ratio of peanuts to raisins in the first version of the trail mix?

• 5 to 4

• 4 to 3

• 2 to 3

• 3 to 2

How do the ratios of the two trail mixes compare?

• The second is larger

• The first is larger

• They are equivalent

• They are not equivalent

What scale would you use to draw a six-foot-tall person on paper?

• 1 inch to 100 feet

• 1 inch to 10 feet

• 1 inch to 1 foot

• 1 inch to 1000 feet

Which scale is appropriate for a football field?

• 1 to 100000

• 1 to 10000

• 1 to 100

• 1 to 1000

What is the equivalent scale to one centimeter to one kilometer?

• 1 to 1000

• 1 to 10000

• 1 to 100000

• 1 to 1000000

Which of the following is an equivalent ratio to 7 to 3?

• 14 to 6

• 10 to 5

• 9 to 4

• 8 to 3

How do you find an equivalent ratio to 7 to 3?

• Add 2 to both numbers

• Subtract 1 from both numbers

• Multiply both numbers by the same factor

• Divide both numbers by the same factor

What is the result of multiplying the ratio 7 to 3 by 3?

• 21 to 9

• 18 to 6

• 20 to 8

• 15 to 5

Which of the following is NOT an equivalent ratio to 7 to 3?

• 28 to 12

• 14 to 6

• 21 to 9

• 10 to 5