Ratios and Proportional Relationships

If there are 5 boys and 7 girls, write the ratio of girls to boys.

• 5 to 7

• 7 to 5

• 5 to 12

• 7 to 12

A bag of marbles comes with 3 blue marbles, 2 red marbles, and 5 yellow marbles. What is the ratio of red to yellow?

• 2 to 5

• 5 to 3

• 3 to 5

• 5 to 2

In the fruit bowl there are 4 apples, 2 bananas, and 5 pears.  What is the ratio of pears to ALL fruit?

• 5:4

• 5:11

• 2:5

• 6:5

What is an equivalent ratio to 3/4?

• 1/4

• 4/5

• 12/16

• 14/18

Solve for C in the table.

• C= 40

• C= 10

• C= 9

• C= 45

Hilbert burns 120 calories per 30 minutes of weight training.  Complete the table to chart his calorie expenditure for different amounts of time. What is the value of a?

• a= 80

• a= 6

• a= 60

• a= 120

Which relationship describes 2:5

• The ratio of desks to chairs if there are 5 chairs and 2 desk

• The ratio of boys to girls if there are 2 girls and 5 boys

• The ratio of girls to boys if ther are 2 girls and 5 boys

• The ratio of chairs to desk if there are 5 chairs and 2 desk

Which ratio is equivalent to 5 to 4

• 25 to 20

• 10 to 12

• 4 to 5

• 15 to 8

Which statement best describes the relationship between x and y in the table?

• Proportional

• Not Proportional

Is this table proportional?

• Yes

• No