Mrs. Barkley is teaching a class in which the students are decorating gift boxes. She wants the students to decorate gift boxes using a ratio of 4 gems for every 3 ribbon flowers. Dan used 20 gems for every 15 ribbon flowers. Mary used 22 gems for every 18 ribbon flowers. Nancy used 18 gems for every 24 ribbon flowers. Jason used 26 gems for every 20 ribbon flowers.

Question

Kyler Adams

Mathematics

1 August, 01:42

Mrs. Barkley is teaching a class in which the students are decorating gift boxes. She wants the students to decorate gift boxes using a ratio of 4 gems for every 3 ribbon flowers. Dan used 20 gems for every 15 ribbon flowers. Mary used 22 gems for every 18 ribbon flowers. Nancy used 18 gems for every 24 ribbon flowers. Jason used 26 gems for every 20 ribbon flowers.

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Adam Ritter · Answer 1

In Mrs. Barkley's class, only Dan followed the directions of using the ratio of 4 gems for every 3 flowers.

Dan:

4 20

3 = 15 You can use cross products to check to see if they are equivalent.

3 x 20 = 4 x 15

60 = 60

Mary:

4 22

3 = 18

4 x 18 = 3 x 22

72 is not equal to 66

Nancy:

4 18

3 = 24

4 x 24 = 3 x 18

96 is not equal to 54

Jason:

4 26

3 = 20

4 x 20 = 3 x 26

80 is not equal to 78