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3 years ago

Which ordered pair is the solution to the system of equations? {y=x−4−4x+3y=−3 (−9, −13)

Mathematics

1 answer:

Leviafan [203]3 years ago

8 0

The correct answer is (-9, -13)

p.s I already took the test and this was right
hope I helped :)

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39. Solve this system: 3x+y=-7 . 4x-y=14A. (–1, 10)B. (1, –10)C. (–1, –10)D. no solution

valkas [14]

Given,

The linear pair of the equation is,

$\begin{gathered} 3x+y=-7 \\ 4x-y=14 \end{gathered}$

Required

The solution of the linear equation.

Taking the equation first as,

$\begin{gathered} 3x+y=-7 \\ y=-7-3x \end{gathered}$

Substituting the value of y in second equation then,

$\begin{gathered} 4x-y=14 \\ 4x+7+3x=14 \\ 7x+7=14 \\ 7x=7 \\ x=1 \end{gathered}$

Substituting the value of x in first equation then,

$\begin{gathered} 3x+y=-7 \\ 3(1)+y=-7 \\ y=-7-3 \\ y=-10 \end{gathered}$

Hence, the solution of the system is (1, -10).

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1 year ago

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MA_775_DIABLO [31]

Answer: 8x^4.5, 4x^3

Step-by-step explanation:

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3 years ago

Find the surface area of the cone below.

alukav5142 [94]

Answer:

1967.89 mm

Step-by-step explanation:

I've drawn my explanation, hopfully it's readable! Ask further questions if you don't understand! Cheers!

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3 years ago

There are 12 inches in a foot. Find the number of inches in 6 feet

Scrat [10]

Answer:

72 inches

Step-by-step explanation:

12 × 6 = 72

Answer: There are 72 inches in 6 feet

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3 years ago

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Answer:

I) 54.2 X 94 = 5094.8

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3 years ago

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