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MAVERICK [17]
3 years ago
14

The cost of a service call to fix a washing machine can be expressed by the linear function y = 45 x + 35, where y represents th

e total cost and x represents the number of hours it takes to fix the machine. What does the slope represent? the cost for each hour it takes to repair the machine the cost for coming to look at the machine the total cost for fixing the washing machine the amount of time that it takes to arrive at the home to make the repairs
Mathematics
2 answers:
katovenus [111]3 years ago
8 0

Answer:

the slope represents the cost for each hour it takes to repair the machine.Step-by-step Answer:

We are given that  the cost of a service call to fix  a washing machine can be expressed by the linear function

Where

y=Total cost of  a service to fix  the machine.

x=Number of hours takes to fix the machine

We have to find that slope in this function what represents.

General equation of line is given by

Where m=Slope of line

c=y- intercept

Comparing the general equation with the given function

We get m=45,c=35

m=45 represents the cost for each hour it takes to repair the machine because when number of hours multiplied by 45 then we get total cost of x hours.

Hence, the slope represents the cost for each hour it takes to repair the machine.

svp [43]3 years ago
8 0

Answer:

the cost for each hour it takes to repair the machine (a)

Step-by-step explanation:

Just took it

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Jane cuts a piece of twine into three pieces.The second pieces is 7 times as long as the
Dovator [93]
Twine into three pieces, lets call them x, y and z

The second piece is 7 times as long as the first piece
7x = y
The third piece is 5 feet longer than the first piece
x + 5 = z
The total length of twine is 320 feet
x + y + z = 320

This is a simultaneous equation.
My goal is to make the final equation in terms of x <span>i.e. 5.5x = 320
</span>I choose the final equation because it is the only equation which has a value in it.

We will substitute the first and second equation into the third equation.
7x = y , x + 5 = z
x + y + z = 320
x + (7x) + (x+5) = 320
9x + 5 = 320
9x = 315
x = 35
Now that we know x, we can substitute it into the first and second equation to find x and y
7x = y              =>        7(35) = y      =>   245 = y
x + 5 = z          =>        (35) + 5 = z  =>   40 = z

In summary
>The first piece, x, is 35 feet long
>The second piece, y, is 245 feet long
>The third piece, z, is 40 feet log
6 0
3 years ago
Solve for x..........
-BARSIC- [3]

9514 1404 393

Answer:

  x = -9

Step-by-step explanation:

Segment NL is twice the length of midsegment WV.

  2WV = NL

  2(x+15) = x+21

  2x +30 = x +21 . . . . simplify

  x = -9 . . . . . . . . . . . . add -30-x

_____

<em>Additional comment</em>

This value of x means the other segments are ...

  MN = 12

  WV = 6

  NL = 12

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Step-by-step explanation:

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If you are finding the perimeter I believe you would just add up the four sides, getting 46
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Step-by-step explanation:

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