Proportional Reasoning

This graph shows a proportional relationship between the number of

minutes (m) a cake factory operates and the total number of cakes

(c) packed. Select ALL True statement about the graph.

• Point P represents the total number of cakes packed

  in 4 minutes.

• The number of cakes packed in 1 minute is 60.

• The number of cakes packed in 6 minutes is 400.

• The factory can pack 40 cakes in zero minutes

This table shows a proportional relationship between x and y. Write the constant of proportionality (r).

This table shows a proportional relationship between x and y. Select All equations represent the relationship between x and y.

Mathematical Equivalence

ON

Are the two ratios proportional?

• YES

• NO

The Northwestern huskies had a record of 25 wins and 45 losses.  What was the ratio of wins to losses?

• 9:5

• 5:9

• 5:3

• 3:5

There are 8 teacher and 40 students going on a field trip. If 20 more students decided to go on the field trip, then how many more teachers must go to keep it proportional?

• 5 more teachers

• 4 more teachers

• 2 more teachers

• none

A recipe calls for 5 cups of flour for every 2 cups of sugar. If you use 6 cups of sugar, how many cups of flour do you need?

• 10 cups

• 12 cups

• 14 cups

• 15 cups

What number should be added to 6, 15 to make numbers proportional to 1:2?

Does this equation represent a proportional relationship?

• Yes

• No