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2 years ago

13

1/2(-9 + y)=2.5 solve for why. Please show me your steps

2 answers:

Oksi-84 [34.3K]2 years ago

7 0

Answer:

Y = 14

Step-by-step explanation:

1/2(-9 + y) = 2.5

1/2 * -9 = -4.5

1/2 * y = 0.5y

-4.5 + 0.5y = 2.5

+4.5 +4.5

0.5y = 7

/0.5 /0.5

y = 14

AlekseyPX2 years ago

5 0

Answer:

$\frac{1}{2} ( - 9 + y) = 2.5 \\ - 4.5 + 0.5y = 2.5 \\ minus \: - 45 \: both \: sides \: of \: the \: equation \\ \frac{0.5y}{0.5} = - \frac{ 7}{0.5} \\ y = 14$

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3 years ago

What is the probability of drawing the compliment of a king or a

inna [77]

Answer:

The probability of drawing the compliment of a king or a queen from a standard deck of playing cards = 0.846

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Let 'S' be the sample space associated with the drawing of a card

n (S) = 52C₁ = 52

Let E₁ be the event of the card drawn being a king

$n( E_{1} ) = 4 _{C_{1} } = 4$

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But E₁ and E₂ are mutually exclusive events

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<u><em>step(ii):-</em></u>

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<u><em>step(iii):-</em></u>

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$P(E_{1}UE_{2}) ^{-} = 1- P(E_{1} U E_{2} )$

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The probability of drawing the compliment of a king or a queen from a standard deck of playing cards = 0.846

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Suppose the area of a circle is 49π. What is its radius

pentagon [3]

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