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IrinaVladis [17]
2 years ago
9

4. A plumber charges $25 for a service call plus $50 per hour of service. Write an equation in slope-intercept form for the cost

, C, after h hours of service. What will be the total cost for 8 hours of work? 10 hours of work?
Mathematics
1 answer:
Pani-rosa [81]2 years ago
8 0

Answer:

The total cost for 8 hours of work is $425.

The total cost for 10 hours of work is $525.

The total amount the plumber earns is made up of a fixed charge and a variable charge. A fixed charge is a charge that remains constant regardless of the number of hours the plumber works. The fixed charge is $25. The variable charge is the charge that increases per hours worked. The variable charge is $50 per hour.

Cost = fixed charge + variable charge

C = $25 + $50h

The total cost for 8 hours

$25 + $50(8)

$25 + $400

= $425.

The total cost for 10 hours

$25 + $50(10)

$25 + $500

$525.

Step-by-step explanation:

hope this helps

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Digiron [165]

Answer:

The length of AA' = √29 = 5.39

Step-by-step explanation:

* Lets revise how to find the length of a line joining between

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- If point A is (x1 , y1) and point B is (x2 , y2)

- The length of AB segment √[(x2 - x1)² + (y2 - y1)²]

* Lets use this rule to solve the problem

∵ Point A is (0 , 0)

∵ Point A' = (5 , 2)

∵ (x2 - x1)² = (5 - 0)² = 5² = 25

∵ (y2 - y1)² = (2 - 0)² = 2² = 4

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Find the volume of a cylinder if the radius is 12 inches and the height is 17 inches
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Answer:

Volume of the cylinder = 7686.72\,inches^3

Step-by-step explanation:

Radius(r) of the cylinder= 12\,inches

Height(h) of the cylinder= 17\,inches

Volume of a cylinder is :

                   \pi \times r^2\times h

As,

          \pi =\dfrac{22}{7}=3.14

Volume is:  

            =3.14\times (12\times 12)\times 17\\\\=3.14\times 144 \times 17\\\\=3.14\times 2448\\\\=7686.72\,inches^3

The volume of the cylinder is: 7686.72\,inches^3                    

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