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Alex17521 [72]
3 years ago
10

Mandy works construction. Shes knows that a 5 meter long metal bar has a mass of 40 kg.Mandy wants to figure out the mass (w) of

a bar made out of the same metal that is 3 meters long and the same thickness.
Mathematics
2 answers:
Agata [3.3K]3 years ago
6 0

Answer:

24 kg

Step-by-step explanation:

40/5 = 8 and 3x8 = 24

ch4aika [34]3 years ago
3 0

Answer:

24 kg

Step-by-step explanation:

\frac{5}{40} =\frac{3}{w} \\5w=120\\w=\frac{120}{5}=24

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the system 5y=8x + 8 and 7y = -8x + 16 is graphed as shown which choice of the point is the point of intersection ?
xenn [34]

Answer:

c= (1/4,2)

Step-by-step explanation:

i did the test and it came out correct i promise !

3 0
3 years ago
Someone please help me thank you
Elis [28]

Answer:

x intercept  2

y intercept 1

Step-by-step explanation:

The x intercept is where it crosses the x axis( or horizontal axis)  It crosses at x =2

The y intercept is where it crosses the y axis ( or vertical axis).  It crosses at y =1

4 0
3 years ago
What is the slope of the line passing through the point (2,1) and the origin ?
liraira [26]

Answer:

m=\frac{1}{2}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Slope Formula: m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

Random Point (2, 1)

Origin (0, 0)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>.

  1. Substitute [SF]:                    m=\frac{0-1}{0-2}
  2. Subtract:                              m=\frac{-1}{-2}
  3. Simplify:                               m=\frac{1}{2}
6 0
3 years ago
The volume of a sphere is 9727 fts.<br> What is the radius of the sphere?<br><br> Ft
Zinaida [17]

Answer:

13.24 is the radius

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Solve: The width of a rectangle is 4 less than the length. The area is 10 ft. Find the width.
garri49 [273]

This is pretty straight forward.

First the area of a rectangle is given by the product of the length and the width and in this case the area is known.

Second the length is an unknown and since we are doing algebra lets call it x

Finally the width is 4 less than the width which is (x-4) units....x will be in meters and the width is 4 meters less then the length.

Putting it together we have x(x-4) = 117 m^2

then

x^2 - 4x = 117

one could use the solution for the quadratic or one could plug in a few numbers as test for the length

10 by 10 is 100 square meters

10 by 14 is 140 square meters

13 by 9 is 117 square meters....x is 13 and x-4 is 9

I used approximation once I had determined the relationship between the area of the rectangle and the perimeter of the rectangle

4 0
4 years ago
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