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3 years ago

What is the solution of the system of equations c+3d=8 and c=4d-6? Show work plz.

1 answer:

6 0

$\left\{\begin{array}{ccc}c+3d=8\\c=4d-6\end{array}\right\\\\substitute:\\\\(4d-6)+3d=8\\4d+3d-6=8\ \ \ \ /+6\\7d=14\ \ \ \ /:7\\d=2\\\\c=4\cdot2-6=8-6=2\\\\\left\{\begin{array}{ccc}c=2\\d=2\end{array}\right$

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satela [25.4K]

Answer: x=11

Step-by-step explanation:

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3 years ago

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Snezhnost [94]

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7 0

2 years ago

PLEASE, PLEASE, PLEASE HELP ME ITS URGENT AND I WILL GIVE BRAINLIEST TO THE FIRST CORRECT ANSWER. I HAVE A TEST TOMORROW.

Leno4ka [110]

Answer:

Step-by-step explanation:

let number of adult tickets=x

and number of student tickets=y

x+y=137 ...(1)

8x+6y=952

divide by 2

4x+3y=476 ...(2)

multiply by 3

3x+3y=411 ....(3)

(2)-(3) gives

x=65

y=137-65=72

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number of student tickets=72

let number of rose flowers =x

and number of carnation flowers=y

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y=264-x

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multiply by 2

7x+5y=1544

7 x+5(264-x)=1544

7 x+1320-5 x=1544

2 x=1544-1320

2 x=224

x=112

y=264-112=152

number of rose flowers=112

number of carnation flowers=152

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3 years ago

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DiKsa [7]

Answer:

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Step-by-step explanation:

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3 years ago

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rewona [7]

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Step-by-step explanation:

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3 years ago