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3 years ago

Solve the systems of equations using the substitution method. 5y-6=x Y=-x

Mathematics

1 answer:

kaheart [24]3 years ago

7 0

Answer:

x=-1, y=1. (-1, 1).

Step-by-step explanation:

5y-6=x

y=-x

-----------

5(-x)-6=x

-5x-6=x

-5x-x=6

-6x=6

x=6/-6

x=-1

y=-(-1)=1

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pav-90 [236]

It is (C) because the line is ZERO meaning the line is vertical and since it goes through 5, it is y=5 cuz u always have the formula for slope; y=mx+b and since there is o x intercept you just stick with the y intercept which is 5 so long story short, it is y=5 (c)

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3 years ago

Abby buys 4 pencils and 2 erasers for 3.58. Michael buys 1 pencil and 6 erasers for 2.49. What is the cost of 1 pencil and 1 era

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Answer:

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Step-by-step explanation:

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3 years ago

Prove the polynomial identity.

Ronch [10]

Answer:

The answer to your question is: 2, 4, 5, 1 , 3

Step-by-step explanation:

The first line is the second

(3x² - 6)² - (3x²)² = 36(1 - x)(1 + 1)

The second line is the forth

9x⁴ - 36x² + 36x² - 9x⁴ = 36(1 - x)(1 + x)

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The last line is the third

36(1 - x)(1 + x) = 36(1 - x)(1 + x)

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3 years ago

Read 2 more answers

Options are: X=2, y=3 X=3, y=2 X= -2, y=3 X=4, y=8

trapecia [35]

Step-by-step explanation:

2x - 5 = y - 5

2x = y

x = y/2

y - 3 = x + 1

Substitute the value of x here,

y - 3 = $\rm{\dfrac{y}{2} + 1}$

y - 3 = $\rm{\dfrac{y + 2}{2}}$

2y - 6 = y + 2

y = 8

Now, x = 8/2

x = 4

So, go for D part, it is the correct answer.

Good Night/Day !

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3 years ago

Read 2 more answers

The ratio of adult cat to kitten at a pet care center on Thursday was 4:3. There were 12 kittens there that day. Tuesday , 17 ad

emmainna [20.7K]

Answer:

1 adult cat

Step-by-step explanation:

Thursday:

The ratio of adult cat to kitten at a pet care center on Thursday was 4:3.

Number of adult cats = 4x

Number of kitten cats = 3x

There were 12 kittens, then

$3x=12\\ \\x=\dfrac{12}{3}\\ \\x=4\\ \\4x=4\cdot 4=16$

There were 16 adult cats

Tuesday:

17 adult cats were at the pet care center.

Difference:

$17-16=1$ adult cat

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4 years ago