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Simora [160]
3 years ago
7

Solve the system of equations. If the system has no solution, say that it is inconsistent. Graph the lines of the system.

Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
5 0

Answer:

The solution to the system of the equations will be:

x=3,\:y=1

Step-by-step explanation:

Given the system of the equations

x+y=4

x-y=2

solving the system of the equations

\begin{bmatrix}x+y=4\\ x-y=2\end{bmatrix}

x-y=2

-

\underline{x+y=4}

-2y=-2

solving

-2y=-2

Divide both sides by -2

\frac{-2y}{-2}=\frac{-2}{-2}

y=1

\mathrm{For\:}x+y=4\mathrm{\:plug\:in\:}y=1

x+1=4

x=3

Therefore, the solution to the system of the equations will be:

x=3,\:y=1

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Answer:

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Step-by-step explanation:

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A pair of Jordans sold at retail for $180 and now sell for $330 after market. A. Is this a percent INCREASE or DECREASE, what is
Elza [17]

Answer:

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Step-by-step explanation:

Let us solve the question

∵ A pair of Jordans sold at retail for $180

∴ The initial price = 180

∵ Now it sells for $330 aftermarket

∴ The new price = 330

→ That means the new price is greater than the initial price

∵ The new price is greater than the initial price

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∵ The percent of change = (amount of increase ÷ initial amount) × 100%

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∴ The amount of increase = 330 - 180 = 150

→ Substitute it in the rule of percent of increase above

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Savatey [412]

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Step-by-step explanation:

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Read 2 more answers
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