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Rudik [331]
3 years ago
5

Elaine has a business repairing home computers.She charges a base fee of $45 for each visit and $25 per hour for her labor. The

total cost c(x) for a home visit and x hours of labor is modeled by the functions rule c (x )equal 45 plus 25 x

Mathematics
1 answer:
Andrei [34K]3 years ago
8 0

Answer:

Please find the attachment.

Step-by-step explanation:

Please consider the complete question: Elaine has a business repairing home computers.She charges a base fee of $45 for each visit and $25 per hour for her labor. The total cost c(x) for a home visit and x hours of labor is modeled by the functions rule c(x)=45+25x.  Use the  function rule to make a table of values and a graph.

To make a table of values, we will take x values like 0, 1, 2, 3, 4 and substitute these values in our given function to find corresponding y-values as:

c(x)=45+25x

c(0)=45+25(0)

c(0)=45

c(1)=45+25(1)

c(1)=45+25

c(1)=70

c(2)=45+25(2)

c(2)=45+50

c(2)=95

c(3)=45+25(3)

c(3)=45+75

c(3)=120

c(4)=45+25(4)

c(4)=45+100

c(4)=145

Now, we will use points (0,45), (1,70), (2,95), (3,120) and (4,145) to graph our function. Upon graphing these points on a coordinate plane, we will get our required graph as shown in the attached file.

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3900 workers in 3 buildings. twice as many work in largest building as the smallest of the 3 . there are 500 more workers in the
Svetllana [295]
<h3><u>Question:</u></h3>

There are 3900 workers in the three main buildings downtown. Twice as many people work in the largest building as in the smallest of the three. There are 500 more workers in the second-largest building than in the smallest building. How many workers are in each building?

<h3><u>Answer:</u></h3>

There are 850 workers in smallest building and 1700 workers in largest building and 1350 workers in second largest building

<h3><u>Solution:</u></h3>

Let "b" be the number of workers in smallest building

Given that Twice as many people work in the largest building as in the smallest of the three

number of workers in largest building = 2b

Given that There are 500 more workers in the second-largest building than in the smallest building

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workers in second largest building = 500 + b = 500 + 850 = 1350

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6 0
3 years ago
Please answer this as soon as possible.
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I’m pretty sure it’s b
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it took jake 28 minutes to run 5km last months. this month he ran 5km in 21 minutes. by what percentage had jake improve his run
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Answer:

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Step-by-step explanation:

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6 0
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Answer:

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So  the  percent of  decrease is 26/117, or about 22%.

Hope this helps!

6 0
3 years ago
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