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3 years ago

-Solve the proportion (round to the nearest tenth). 1910=x12

Mathematics

1 answer:

zysi [14]3 years ago

5 0

The value of x in the proportion is 15.8.

1910 = x12

1910 = 12x

divide both sides by 12

1910 / 12 = 12x / 12

x = 15.8333333333

x ≈ 15.8

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To prove this: recall that

p ⇒ q ⇔ ¬p ∨ q

This is because p ⇒ q is true if p is false, or both p and q are true, i.e.

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Disjunction (∨ or "or") distributes over conjunction (∧ or "and"), so that

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but ¬p ∨ p is always true, or a tautology, so we're just left with ¬p ∨ q.

Then

¬p ⇒ q ⇔ p ∨ q

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natulia [17]

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Step-by-step explanation:

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