Question

What is the answer to this problem?

Answer 1

Answer

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A = 9

B = 19

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Explain

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If median are getting from " ( a + b ) ÷ 2 " . So :

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Find b :

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(a + b) ÷ 2 = Median

(17 + b) ÷ 2 = 18

17 + b = 18 × 2

17 + b = 36

b = 36 - 17

b = 19

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In conclusion, the value of b is 19

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Find a :

$\frac{7 + a + 12 + 15 + 17 + 19 + 20 + 22 + 24 + 25}{10} = 17$

$\frac{161 + a}{10} = 17$

$161 + a = 17 \times 10$

$161 + a = 170$

$a = 170 - 161$

$a = 9$

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In conclusion, the value of a is 9

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GAK BISA BAHASA INGGRIS :(

Answer 2

9 because it’s skip counting by 3 and 2