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serious [3.7K]
3 years ago
6

-2x-3y=-7 y=6x-11 If someone answers this and shows work I will give Brainlyest

Mathematics
2 answers:
podryga [215]3 years ago
6 0

Answer:

x = 2, y = 1

Step-by-step explanation:

We have a system of equations:

-2x - 3y = -7

y = 6x - 11

Substitute the given value of y into the equation -2x - 3y = -7

-2x - 3 * (6x - 11) = -7

-20x = -7 - 33

-20x = - 40

x = 2

Substitute the given value of x into the equation y = 6x - 11

y = 6x - 11

y = 6 * 2 - 11

y = 1

Brilliant_brown [7]3 years ago
4 0

Answer:

x = 2

y = 1

Step-by-step explanation:

-2x-3y=-7, y=6x-11

-2x - 3(6x - 11) = -7

-2x - 18x + 33 = -7

-2x - 18x = -40

-20x = -40

<u><em>x = 2</em></u>

y = 6(2) - 11

y = 12 - 11

<u><em>y = 1</em></u>

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Bumek [7]

for #3:

a) 0.9

b) 0.4

c) 0.7

d) 0.08

e) 3.9

f) 1.6

g) 5.5

h) 12.4

And for #4:

The answer is $131.63

Nathan earns 9.75 dollars in <u>one</u> hour, and you want to figure out how many he makes in <u>thirteen and a half</u> hours. To do this, just multiply 9.75 by 13.5.

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4 0
2 years ago
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The curvature of the Tacoma Narrows Bridge in
8_murik_8 [283]

Answer:

Width of the arch = 105 m

Step-by-step explanation:

Function representing the width of the arch,

f(x) = -0.016(x - 52.5)² + 45

where x = width of the base of the arch or horizontal distance from arch's left end

f(x) = vertical distance of the arch

From the given quadratic function, vertex of the parabola is (52.5, 45).

Coordinates of the vertex represents,

Height of the arch = 45 m

Half of the horizontal distance from the left end = 52.5 m

Therefore, width of the bridge = 2(Half the width of the bridge from left end) = 2×52.5

= 105 m

Therefore, given bridge is 105 m wide.

4 0
3 years ago
Which series of transformations results in the image being congruent to the pre-image?
erik [133]
For the element to be congruent only rotations, reflections or translations are allowed to be applied
1)
(x, y) → (x, –y)=reflection
(x, y) → (x + 5, y)=translation
(x, y) → (–x, y)=reflection
->is congruent
2)
(x, y) → (x + 1, y)=translation
(x, y) → (–x, –y)=reflection
(x, y) → (2x, y)=scaling->can't be congruent
3)
(x, y) → (0.5x, 0.5y)=scaling->can't be congruent
(x, y) → (x, –y)
(x, y) → (x, y + 8)
4)
(x, y) → (x – 4, y)=translation
(x, y) → (x, y + 3)=translation
(x, y) → (3x, 3y)=scaling->can't be congruent

so 1) is the only series of transformations with a congruent solution
4 0
3 years ago
Read 2 more answers
What is the volume of a rectangular prism with a length
lana [24]

The volume of the rectangular prism is 1 inch^{3}, If the rectangular prism have a length  of 2 inches, a width of 1 inch, and a height of 1/2 inch.

Step-by-step explanation:

          The given is,

               Let, l - Length of the rectangular prism

                     w - Width of the rectangular prism

                     h - Height of the rectangular prism

Step:1

        From the given,

                    l - 2 inches

                   w - 1 inch

                   h -  \frac{1}{2} inch

Step:2

       Formula for the volume of a rectangular prism is,

                 V = w h l

      Substitute the values of the w, h and l

                     = ( 1 × \frac{1}{2} × 2 )

                     = 1

                V = 1 inch^{3}

Result:

        Thus the volume of the rectangular prism is 1 inch^{3}, for the given  rectangular prism have a length  of 2 inches, a width of 1 inch, and a height of 1/2 inch.

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inna [77]

Answer:

<em>Correct answer is C. -41</em>

Step-by-step explanation:

Theory:

Number + Additive inverse = 0

Therefore, Addictive inverse of 41 is

Additive inverse + 41 = 0

Additive inverse = -41

Correct answer is C. -41

7 0
3 years ago
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