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juin [17]
3 years ago
14

I need help finding x I’m

Mathematics
2 answers:
vekshin13 years ago
4 0
X= 18 ;;;))))) pls answer some of my questions.
AysviL [449]3 years ago
3 0
X = 18 because the two values are equal to each other
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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
What is the range and domain of the relation?<br><br> {(-3, 4), (-2, 0), (0, -1), (1, 2), (-3, 2)}?​
Rus_ich [418]

Answer:

Range: {-1, 0, 2, 4}

Domain: {-3, -2, 0, 1}

Step-by-step explanation:

The range is the set containing all y-coordinates.

The domain is the set containing all x-coordinates.

A coordinate appears only once in each set.

Range: {-1, 0, 2, 4}

Domain: {-3, -2, 0, 1}

8 0
3 years ago
Read 2 more answers
The product of the base and height of a rectangle is the area. Can this statement be represented as a direct variation for the b
Flura [38]
Look at the formula A = b(h):  Area of a rect. = base times height.

In the unusual situation where you'd hold the area constant and vary b and h, then   A=bh could be re-written as

 A
---- = h    or  A/h = b.  In both cases we'd be working with inverse proportion,
 b                                   not direct proportion / variation.

5 0
3 years ago
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a school auditorium has 4 sections.Each seat takes up1/25 of a section.how many seats are in the auditorium?
Whitepunk [10]
100 seats total.
there are 25 seats per section and 4 sections
they just add in fancy stuff to make it confusing.
8 0
4 years ago
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What is the solution set of the following equation?
Kipish [7]
Dont think theres enough info there to do that

7 0
3 years ago
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