Proportions WS

• Yes

• No

Do the ratios 2/20 and 1/10 form a proportion?

• Yes

• No

Do the ratios 9/12 and 27/36 form a proportion?

• Yes

• No

Do the ratios 12/16 and 2/4 form a proportion?

• Yes

• No

Was the amount Jennifer earned each day proportional to the number of hours that she worked?

• Yes, the earnings were proportional to the hours worked.

• No, the earnings were not proportional to the hours worked.

There are 720 calories in 6 servings of Amy’s cookies. 1,320 calories in 12 servings of Henry’s cookies. Do the two rates form proportions?

• No, the two rates do not form proportions.
• Yes, the two rates form proportions.

Decide whether or not x and y are proportional. Justify your answer.

• No, x and y are not proportional.
• Yes, x and y are proportional.

Two quantities are proportional if their __________ are equal.

• numerators
• denominators
• cross products
• units

Determine whether the ratios form a proportion: 18/32 and 9/16

• proportional

• not proportional