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mash [69]
4 years ago
6

HOW MANNY YARDS ARE IN A FEET

Mathematics
2 answers:
Vladimir [108]4 years ago
6 0

Answer:

0.333333 yards in a foot

Step-by-step explanation:

bija089 [108]4 years ago
3 0

Answer:

1 yard=3 feet

Step-by-step explanation:

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3x + 2y + z = 8 2x - 3y + 2z = -16 x + 4y - z = 20
padilas [110]
I'll do a similar problem, and I challenge you to do this on your own using similar methods!

x+5y+2z=23
8x+4y+3z=12
9x-3y-7z=-10

Multiplying the first equation by -8 and adding it to the second one (to get rid of the x) and also multiplying the first equation by -9 and adding the third one to get rid of the x there too, we end up with

-36y-13z=-92
and
-48y-25z=-217

Multiplying both equations by -1, we get
36y+13z=-92
48y+25z=217

Multiplying the (new) first equation by -4/3 and adding it to the second (to get rid of the y), we get
(7+2/3)z=94+1/3

Dividing both sides by (7+2/3) to separate the z, we get
z=\frac{282/3}{23/3} = \frac{282}{23}

Plugging that into 
48y+25z=217, we can subtract 25z from both sides and divide by 48 to get 
y= \frac{217-25z}{48} =\frac{217-25*282/23}{48}

Lastly, we plug this into x+5y+2z=23 to get
x=23-5y-2z by subtracting 5y+2z from both sides to get 
x=23- \frac{217-25*282/23}{48}*5-2*282/23 

Good luck, and feel free to ask with any questions!
4 0
3 years ago
I’ll mark brainliest please help!
Ber [7]

Answer: it’s the 3rd one

Step-by-step explanation:

7 0
4 years ago
100 POINTS 100 POINTS!
Elis [28]

Answer:

Step-by-step explanation:

As each step has the same depth and rise, they are respectively 1.2/4=0.3m and 1.8/4=0.45m.

Dividing the steps along the dotted lines, the total rise of the 4 concrete steps  = (1+2+3+4)*0.45

= 4.5m

Total concrete volume = total rise * depth * width

= 4.5*0.3*1.8

= 2.43m^3

7 0
3 years ago
Read 2 more answers
The equation d=4-1/15t represents your distance from home, d, for each minute you walk, t. If you graphed this equation, determi
lara [203]

Answer: the slope is -1/15 and it means that the distance from home decreases 1/15 units per minute of walk, which indicates the your are going home.


Explanation:


The equation d = 4 - (1/5)t has these features:

  • it is a linear (first degree) equation/
  • d is the dependent variable, distance from home.
  • t is the independent variable, minutes of walk
  • 4 is the constant term and it is the value of d when t = 0, which means that it is the vertical axis intercept and represents the initial distance from home.
  • - ( 1/15) is the coefficient of the independent variable, it is the slope of the equation, and means the rate of change of the distance per minute of walk.
  • this slope, since it is negative, means that the distance decreases as times goes on. It means that each minute of walk the distance decreases 1/15 unit.
  • you can find when the distance is zero, by doing the variable d = 0:

         d = 0 = 4 - (1/15)t ⇒ t = 4×15 = 60 min.

The given equation, d = 4 - (1/5)t is a linear equation, whose y-intercept form is y = mx + b.

  • m is the slope, therefore it is - 1/15.
  • 4 is the y-intercept, therefore it is 4.

The domain of the function is the interval [0, 60], meaning that those are the minutes of the walk.

The range of the function is the interval [4, 0] meaning that the distance goes from 4 to 0 units.

You have plenty information to do the graph:

  • label the horizontal axis t in minutes
  • do marks at 0, 5, 10, 15, 20, 25, .... up to 60 on the horizontal axis
  • lable the vertical axis d
  • do marks at 4, 3, 2, 1, on the vertical axis
  • draw the points (0, 4) and (60,0)
  • draw a segment joining those two points.

You can see the graph in the image attached.

7 0
4 years ago
The Greens want to put an addition on their house 18 months from now. They will need to save $10,620 in order to achieve this go
Natasha2012 [34]
Option b. is what I would go with
3 0
3 years ago
Read 2 more answers
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