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2 years ago

Solve for y. Solve for z. x + y + z = 4 4x - y - z = 1 x + z = 2

Mathematics

1 answer:

kaheart [24]2 years ago

8 0

Answer:

x = 1, y = 2, z = 1

Step-by-step explanation:

Adding the first 2 equations to each other gives

x + y + z + 4x - y - z = 4 + 1

which simplifies to

5x = 5, so x = 1

x + z = 2 so 1 + z = 2, so z = 1 too

x + y + z = 4 = 1 + y + 1 = 2 + y so y = 2

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katrin [286]

Answer:

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Step-by-step explanation:

1. Let's review the information provided to us to answer the question correctly:

Annual profit in dollars from selling pies using p n( ) = 52n − 0.05n² , where n is the number of pies sold

Annual sales of the baker = 400 pies

2. Let's solve p for 400 pies

p n( ) = 52n − 0.05n²

p (n₄₀₀) = 52 * 400 − 0.05 * 400²

p (n₄₀₀) = 20,800 − 0.05 * 160,000

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Cancel out 40!

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