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4 years ago

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