Question

what number must be subtracted from each of the numbers 31, 19 , 13 and 10 so that they are in proportion
full process please
urgent!!


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Answer 1

Answer:

31 - 19 = 12

19 - 13 = 6

13 - 10 = 3

12 + 6 + 3 = 21

Hope it helps

Answer 2

Answer:

1 I think

Step-by-step explanation:

31 - 1 =30

19 -1 = 18

13- 1 = 12

10 - 1 = 9