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3 years ago

Solve the system using elimination (15 points) 2x+3y=9 x+5y=8

Mathematics

1 answer:

lisov135 [29]3 years ago

4 0

Answer: (3,1)

Step-by-step explanation:

2x + 3y = 9

(x + 5y = 8) -2

2x + 3y = 9

-2x - 10y = -16

-7y = -7

y = 1

2x + 3(1) = 9

2x = 6

x = 3

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Evaluate x – 2y if x = –3 and y = –6. 1. 15 2. 9 3. -9 4. -15

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Answer:

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Step-by-step explanation:

-3 - 2(-6)

-3 -12

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3 years ago

Rosie is a real estate agent and is paid the following for commission on sales: 4% for the first $50,000, 2% for the next $100,0

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Answer:

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Step-by-step explanation:

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4 years ago

Theo budgets $154 for karate classes. He buys a karate uniform, called a dogi, for $12. If it costs $8 to attend each karate cla

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Step-by-step explanation:

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3 years ago

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Help me also with #8 !!!

iVinArrow [24]

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3 years ago

suppose a triangle has two sides of length 2 and 3 and that the angle between these two sides is 60. what is the length of the t

arlik [135]

Answer:

√7 ≈ 2.646

Step-by-step explanation:

The law of cosines is applicable. It tells you ...

c² = a² + b² - 2ab·cos(C) . . . . . where a, b, c are triangle side lengths, and angle C is opposite side c.

Filling in the given information, you have ...

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The length of the third side is √7, about 2.646 units.

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