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3 years ago

If y = 4.5 when x = 2.5, find y when x = 12.

Mathematics

1 answer:

hichkok12 [17]3 years ago

3 0

4.5/2.5 = y/12
y = 12 * 4.5/2.5
y = 21.6

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your baseball team has won 6 games and lost 4 games. if the team does not lose any more games, how many games must the team win

puteri [66]

Answer:

The team must win 2 games to have a win : loss ratio o 2.

Step-by-step explanation:

Ratio win : loss, r:

r = total wins / total losses

Total wins, Tw:

Call n the number of new wins:

Tw =number of wins until so far + number of new win = 6 + n

Total losses, Tl:

Tl = number of losses so far + number of new losses = 4 + 0 = 4

Target ratio:

r = 2 ⇒ Tw / Tl = (6 + n) / 4 = 2

Solve for n:

(6 + n ) = 4 × 2
6 + n = 8
n = 8 - 6
n = 2

Hence, the team must win 6 more games.

Verification: (6 + 2 ) / 4 = 8 / 4 = 2, which is the target ratio.

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3 years ago

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Answer:

Step-by-step explanation:

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2 years ago

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2 years ago

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Answer:

Step-by-step explanation:

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3 years ago

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Answer:

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Step-by-step explanation:

We are given that

$x^2-3lny+y^2=0$

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$2x-\frac{3}{y}\frac{dy}{dx}+2y\frac{dy}{dx}=0$

By using formula

$\frac{dx^n}{dx}=nx^{n-1}$

$\frac{d(lnx)}{dx}=\frac{1}{x}$

$\frac{dy^n}{dx}=ny^{n-1}\frac{dy}{dx}$

$\frac{dy}{dx}(-\frac{3}{y}+2y)+2x=0$

$\frac{dy}{dx}(-\frac{3}{y}+2y)=-2x$

$\frac{dy}{dx}=-\frac{2x}{-\frac{3}{y}+2y}$

$\frac{dy}{dx}=-\frac{2xy}{2y^2-3}$

Hence, the derivative of function

$\frac{dy}{dx}=-\frac{2xy}{2y^2-3}$

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3 years ago