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2 years ago

2-(y + 2) = 3y Solve for y

Mathematics

1 answer:

alexgriva [62]2 years ago

3 0

Answer:

y=0

Step-by-step explanation:

Reorder the terms:

2 + -1(2 + y) = 3y

2 + (2 * -1 + y * -1) = 3y

2 + (-2 + -1y) = 3y

Combine like terms: 2 + -2 = 0

0 + -1y = 3y

-1y = 3y

Solving

-1y = 3y

Add '-3y' to each side of the equation.

-1y + -3y = 3y + -3y

Combine like terms: -1y + -3y = -4y

-4y = 3y + -3y

Combine like terms: 3y + -3y = 0

-4y = 0

Divide each side by '-4'.

y = 0

hope this helps

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2 years ago

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2 years ago

A line passes through points (2,5) and (5, 14). What is the slope of this line?

topjm [15]

We know that:

Slope of a line = change in y coordinate / change in x coordinate

We are given:

First point = (2,5)

Second point = (5, 14)

Calculating the change in y coordinate:

change in y (also represented by Δy) = second y - first y

Δy = 14 - 5

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Calculating the change in x coordinate:

Δx = second x - first x

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2 years ago

the remains of an ancient ball court include a rectangular playing alley with a perimeter of about 48 M. the length of the alley

Firdavs [7]

Answer:

Length is 20 m and width is 4 m.

Step-by-step explanation:

Given:

Perimeter of the rectangular alley, $P=48\textrm{ m}$

Length is 5 times the width.

Let width be $x$ .

So, as per question,

Length, $l = 5x$

Now, perimeter of rectangle is given as:

$P=2(l+b)$

Plug in 48 for $P$ , $5x$ for $l$ and $x$ for b.

$48=2(5x+x)\\48=2(6x)\\48=12x\\x=\frac{48}{12}=4$

Therefore, width is 4 m.

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3 years ago

Need help please answer this question

Aleks04 [339]

Answer:

Step-by-step explanation:

Substitute the given values for x and y into the expression

5 × ( $\frac{60}{6(5)}$ ) - 1

= 5 × ( $\frac{60}{30}$ ) - 1

= (5 × 2) - 1

= 10 - 1

= 9 → C

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2 years ago