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3 years ago

Hellppppp meeeeeeeeeeeeeeeeeee

Mathematics

2 answers:

Harman [31]3 years ago

6 0

Answer:

Let the short piece be x

The long piece is x + 6

The medium piece is 3x

Total

x + (x+6) + 3x = 11

5x + 6 = 11

5x = 11-6

x = 5/5

x = 1

Short piece is 1ft

Medium piece is 3ft

Long piece is 7ft

sleet_krkn [62]3 years ago

3 0

Answer:

Shorter piece : 1

Medium piece: 3

Longest piece: 7

Step-by-step explanation:

11 = a + b + c

a =longest

b = medium

c = shortest

a = 6ft + c

b = 3 × c

* put that all into the equation

11= (6+c) + (3×c) + c

11 = 6 + c + 3c + c

5 = 5c

c = 1

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How do you graph -1/5x-1 and 4/5x-6

kakasveta [241]

Answer:

The points for the given to linear equations is (5 , - 2) and (5 , - 1)

The points is plotted on the graph shown .

Step-by-step explanation:

Given as :

The two linear equation are

y = $\dfrac{-1}{5}$ x - 1 ...........1

y = $\dfrac{4}{5}$ x - 6 ...........2

Now, Solving both the linear equations

Put the value of y from eq 2 into eq 1

I.e $\dfrac{4}{5}$ x - 6 = $\dfrac{-1}{5}$ x - 1

Or, $\dfrac{4}{5}$ x + $\dfrac{1}{5}$ x = 6 - 1

Or, $\dfrac{4 + 1}{5}$ x = 5

or, $\dfrac{5}{5}$ x = 5

∴ x = 5

Now, Put the value of x in eq 1

So, y = $\dfrac{-1}{5}$ x - 1

Or, y = $\dfrac{-1}{5}$ × 5 - 1

or, y = $\dfrac{-5}{5}$ - 1

Or, y = - 1 - 1

I.e y = -2

So, For x = 5 , y = - 2

Point is ( $x_1$ , $y_1$ ) = (5 , - 2)

Again , put the value of x in eq 2

So, y = $\dfrac{4}{5}$ x - 6

Or, y = $\dfrac{4}{5}$ × 5 - 6

Or, y = $\frac{4\times 5}{5}$ - 6

Or, y = 4 - 6

I.e y = - 2

So, For x = 5 , y = - 2

Point is ( $x_2$ , $y_2$ ) = (5 , - 2)

Hence, The points for the given to linear equations is (5 , - 2) and (5 , - 2)

The points is plotted on the graph shown . Answer

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Art [367]

Answer:

Step-by-step explanation

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