Azure solved this proportion as shown: 12 30 = 5 x Step 1: 30x = (12) (5) Step 2: 30x = 60 Step 3: x = 2 What was Azure's error? In Step 2, she did not multiply 12 by 5 correctly. In Step 1, she multiplied the numerators together and the denominators together. In Step 1, she should have multiplied 5 by 12 instead of 12 by 5. In Step 3, she did not divide each side by the same number.

Question

Mathematics

Cynthia Hester

24 November, 12:50

Azure solved this proportion as shown: 12 30 = 5 x Step 1: 30x = (12) (5) Step 2: 30x = 60 Step 3: x = 2 What was Azure's error? In Step 2, she did not multiply 12 by 5 correctly. In Step 1, she multiplied the numerators together and the denominators together. In Step 1, she should have multiplied 5 by 12 instead of 12 by 5. In Step 3, she did not divide each side by the same number.

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Answers (1)

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Bello · Answer 1

In Step 1, she multiplied the numerators together and the denominators together.

x=12.50

Step-by-step explanation:

Correct steps

12:30=5:x

Step1:

12/30=5/x

Cross product

Step 2:

12*x=30*5

12x=150

Step3:

x=150/12

x=12.50

In Step 1, she multiplied the numerators together and the denominators together.