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Lelechka [254]
3 years ago
8

HELP ASAP

Mathematics
2 answers:
oksano4ka [1.4K]3 years ago
3 0

9514 1404 393

Answer:

  c.  x = 7-t; y = -1/(t -7)

Step-by-step explanation:

To find the parametric equation for x, use the equation for t and solve for x.

  t = 7-x

  x = 7 -t . . . . . . add x-t to both sides

__

To find the parametric equation for y, substitute the equation for x.

  y = 1/x

  y = 1/(7-t)

To make this match the available choices, we need to multiply numerator and denominator by -1.

  y = -1/(t -7)

The parametric equations are ...

  x = 7 -t; y = -1/(t -7) . . . . . . matches choice C

Maslowich3 years ago
3 0

Answer: it is C

Step-by-step explanation:

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Sati [7]

Answer:

You can answer this by using the unitary method, which involves finding the number of calories in 1 cup first.

In

1

4

of a cup there are

135

calories

In

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×

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4

=

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4

×

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=

540

calories

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=

1080

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You can also use the method of direct proportion:

cups

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=

0.25

135

=

2

x

   

←

cross-multiply

0.25

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×

2

x

=

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×

2

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1080

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Step-by-step explanation:

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