Ratio and proportion

What do you call when two ratios are equal when you multiply the means and extremes?

(a)  

Tags

CCSS.7.RP.A.2A

A cake recipe calls for 1 cups of milk and 3 cups of flour. Seth made a mistake and used 4.5 cups of flour. How many cups of milk should he use to keep the proportions correct?

• 1.5 cups milk

• 1.75 cups milk

• 2 cups flour

• 2.5 cups milk

Tags

CCSS.7.RP.A.2A

Emily enlarged the size of a painting to a width of 15 in. What is the new height if it was originally 3 in. wide and 4 in. tall? 

• 17 in.
• 20 in. 
• 5 in. 
• 23 in. 

Tags

CCSS.7.RP.A.2A

Select all tables that represent a proportional relationship.

• 
• 

Tags

CCSS.7.RP.A.2A

Is the table proportional?

• Yes
• No

Tags

CCSS.7.RP.A.2A

Carmen is downloading music. Each song is $1.75. Is this a proportional relationship?

• Yes

• No

Tags

CCSS.7.RP.A.2A

Which of the following ratios form a proportion?

• $\frac{1}{3},\frac{2}{4}$

• $\frac{3}{4},\frac{2}{3}$

• $\frac{2}{3},\frac{4}{6}$

• $\frac{7}{9},\frac{5}{11}$

Tags

CCSS.7.RP.A.2A

Determine whether each pair of ratios forms a proportion

• Proportion

• Not a Proportion

Tags

CCSS.7.RP.A.2A

Are  $\frac{3}{4}$   and  $\frac{24}{32}$   proportional? 

• Yes

• No

Tags

CCSS.7.RP.A.2A

Is there a proportional relationship between x and y? Explain

• No, all ratios y/x are not equivalent.

• Yes, each x value and y value increase by 2.

• Yes, the difference between each x value and y value is 3.

• No, all ratios x/y are greater than 1.

Tags

CCSS.7.RP.A.2A