X e 5 7 10 12

Y 10 13 19 f 34

f = 28, e = 4

e = 28, f = 4

f = 30, e = 2

e = 30, f = 2

Question

Mathematics

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13 December, 03:13

X e 5 7 10 12

Y 10 13 19 f 34

f = 28, e = 4

e = 28, f = 4

f = 30, e = 2

e = 30, f = 2

+5

Answers (1)

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Jakob Kane · Answer 1

5 → 13

3 · 5 - 2 = 15 - 2 = 13

7 → 19

3 · 7 - 2 = 21 - 2 = 19

12 → 34

3 · 12 - 2 = 36 - 2 = 34

Therefore we have the equations

3e - 2 = 10 |add 2 to both sides

3e = 12 |divide both sides by 3

e = 4

3 · 10 - 2 = f

f = 30 - 2

f = 28

Answer: f = 28, e = 4

X e 5 7 10 12Y 10 13 19 f 34f = 28, e = 4e = 28, f = 4f = 30, e = 2e = 30, f = 2

X e 5 7 10 12

Y 10 13 19 f 34

f = 28, e = 4

e = 28, f = 4

f = 30, e = 2

e = 30, f = 2