Question

One of the rows in the table has an error and does not have the same ratio as the other rows.

Conversion Chart

Feet
Inches
Row 1
3
36
Row 2
6
72
Row 3
7
94
Row 4
9
108

Which explains how to correct the error in the table?
Row 1 should show 3 feet is equivalent to 32 inches.
Row 2 should show 6 feet is equivalent to 66 inches.
Row 3 should show 7 feet is equivalent to 84 inches.
Row 4 should show 9 feet is equivalent to 104 inches.

Answer 1

If you know US Customary, you will recognize that in each foot, there is 12 inches. Answer a: 12(3) is equal to 36, 12(6) is equal to 72, and 12(9) is equal to 108. Through the process of elimination, Row 3 should not be 94 inches = 7 feet; it would be 84 inches. Hope this helps!

Answer 2

Row 3 should show 7 feet is equivalent to 84 inches.

Explanation:

First divide 36 and 3 to find the constant proportion. Which you get 12

Now multiply 12 x 3 , 12 x 6, 12 x 7, and 12 x 9

You should be able to find the incorrect answer which is row 3

12 x 7 actually equals 84 not 94

Hope this makes sense!