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Karo-lina-s [1.5K]
3 years ago
7

I need help please....

Mathematics
2 answers:
Alex Ar [27]3 years ago
8 0

Answer:

3/10

Step-by-step explanation:

Zina [86]3 years ago
5 0

Answer:

1/10

Step-by-step explanation:

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Ruby is visiting San Francisco. From her hotel she walks 1 block east and 2 blocks south to a coffee shop. Then she walks 2 bloc
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5 blocks south and 1 block west

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Stephanie built a box to hold sports equipment. The box is in the shape of a rectangular prism. The
zepelin [54]

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  3 ft

Step-by-step explanation:

The volume of the box is given by the formula ...

  V = Bh

where B is the base area and h is the height. Solving for h, we get ...

  h = V/B

Filling in the numbers gives us the height:

  h = (20 1/4 ft^3)/(6 3/4 ft^2) = (81/4)·(4/27) ft = 3 ft

The height of the box is 3 feet.

5 0
3 years ago
Read 2 more answers
I'm not good at math so I need help with this
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1/2(6.3x10.4)=32.8m^2
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3 years ago
Factor the expression completely. 6×3- 4×2 – 16x A. 0 B. 2x(3×2 – 2x – 8) C. 2x(3x + 4)(x – 2) D. 4x(2x + 1)(x – 4) E. 2x(2×2 +
11111nata11111 [884]

2x(3×2 – 2x – 8)

6 \times 3 - 4 \times 2 - 16x

6(3 - 4 \times 2 - 16x)

2x(3 \times 2 - 2x - 8)

7 0
3 years ago
8x + 20y = 20<br> 14x + 35y = k<br> For the above system of equations to be consistent, k must equal
Goshia [24]

Answer:

  35

Step-by-step explanation:

The equations will be "consistent" when they describe lines that are not parallel.

<h3>Slopes</h3>

The slope of a line whose equation is written in this form is the opposite of the ratio of the y-coefficient to the x-coefficient:

  line 1 slope = -8/20 = -2/5

  line 2 slope = -14/35 = -2/5

These lines have the same slope, so will be parallel unless they have the same y-intercept.

<h3>Y-intercept</h3>

The y-intercept of each line is the ratio of the constant to the y-coefficient:

  line 1 y-intercept = 20/20 = 1

  line 2 y-intercept = k/35

We want these lines to have the same y-intercept so that they are not inconsistent. This requires ...

  k/35 = 1

  k = 35

For the equations to be consistent, we must have k = 35.

__

<em>Additional comment</em>

Linear equations are generally categorized as "consistent" or "inconsistent," and "dependent" or "independent."

Equations are "inconsistent" if there are no values of the variables that satisfy all of the equations. They are "dependent" if they describe exactly the same relation between the variables. "Consistent" equations may be "dependent" (describing the same line, as here), or "independent" (describing lines with different slopes.)

7 0
2 years ago
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