Math, asked by faridalam6488, 1 year ago

8. What must be added to the numbers 5, 9, 13 and 21 so that they are in proportion.

Answers

Answered by sayandutta1

2

Answer:

21+8=29

Step-by-step explanation:

5+4=9

9+4=13

13+2×4=21

21+8=29

Answered by chaitunaik

1

Answer:

3

Step-by-step explanation:

5+x/9+x=13+x/21+x

solve this

we get x=3

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