Rachel purchased different carpets that had the same ratio of the length to the width. the table below shows the length and width of some carpets rachel bought: length (feet) width (feet) 4 3 8 6 12 9 16 12 ? 15 the missing value in the table is feet.

The answer is 20

Step-by-step explanation: You have to multiply times 4 and Width by 3 Hope this helps.

4 x 1 = 4                                                                                              

4 x 2 = 8

4 x 3 = 12

4 x 4 =  16

4 x 4 = 20

3 x 1 = 3

3 x 2 = 6

3 x 3 = 9

3 x 4 = 12

3 x 5 = 15

So the answer is 20

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents