2 years ago

Find the number that makes the ratio equivalent to 3:9. 9:?

1 answer:

5 0

Answer:

Step-by-step explanation:

Given the ratio 3 : 9

and 9 : ?

note that 3 × 3 = 9, thus 9 × 3 = 27

3 : 9 = 9 : 27

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Ratling [72]

Answer:

$m\widehat{AB} =55 \degree$

Step-by-step explanation:

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(Vertical angles)

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(Measure of minor arc is equal to the measure of it's corresponding central angle)

$\therefore m\widehat {AB}+m\widehat {BC} = m\widehat {DE}$

$\therefore m\widehat{AB} = m\widehat {DE} - m\widehat {BC} \\ \\ m\widehat{AB} =93 \degree - 38 \degree \\ \\ m\widehat{AB} =55 \degree$

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