1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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

You might be interested in
Limit of x^2-81/x+9<br> As x goes toward -9
Semmy [17]
Hello,

Use the factoration

a^2 - b^2 = (a - b)(a + b)

Then,

x^2 - 81 = x^2 - 9^2

x^2 - 9^2 = ( x - 9).(x + 9)

Then,

Lim (x^2- 81) /(x+9)

= Lim (x -9)(x+9)/(x+9)

Simplity x + 9

Lim (x -9)

Now replace x = -9

Lim ( -9 -9)

Lim -18 = -18
_______________

The second method without using factorization would be to calculate the limit by the hospital rule.

Lim f(x)/g(x) = lim f(x)'/g(x)'

Where,

f(x)' and g(x)' are the derivates.

Let f(x) = x^2 -81

f(x)' = 2x + 0
f(x)' = 2x

Let g(x) = x +9

g(x)' = 1 + 0
g(x)' = 1

Then the Lim stay:

Lim (x^2 -81)/(x+9) = Lim 2x /1

Now replace x = -9

Lim 2×-9 = Lim -18

= -18




7 0
3 years ago
two sides of a triangle are equal in length. the length of the third side is three more than the length of the equal sides. the
cluponka [151]

Answer:

each side is 31cm

Step-by-step explanation:

91/3=31

31+31+31=93

4 0
3 years ago
PUT THESE NUMBERS IN ORDER GREATEST TO LEAST ✔✔ I WILL ADD BRAINLIST
Fiesta28 [93]

Answer:

2 12/16, 2 18/25, and lastly 2.

Step-by-step explanation:

Since 2 is least, we can put that at the end. That leaves us with 2 18/25 and 2 12/16. Since 12/16 is greater, we will put that as the greatest. 2 18/25 is in the middle. Hope this helps!

6 0
3 years ago
What is the value of the coefficient of the fourth term of the expansion of (a+b)^5 ?
melomori [17]

Answer:

I don't know if you wanted it expanded using "Pascal's Triangle" or "Binomial Theorem" but either way is the same. Your expanded equation is:

a^5 + 5a^4b + 10a^3b^2 + 10a^2b^3 + 5ab^4 + b^5

I hope this is any help to you, have a nice day.

Step-by-step explanation:

6 0
3 years ago
What multiplies to be 560 and adds to 9
Diano4ka-milaya [45]

There are no real numbers that can do that job.

There's a pair of complex numbers that can do it.
They are

         4.5 + i23.23
and
         4.5 - i23.23 .

     ' i ' = the imaginary unit = √(-1)

8 0
3 years ago
Other questions:
  • Which label would NOT be appropriate for volume.
    7·2 answers
  • The price for strawberries is currently $ 6.40 per pack. next week,strawberries will be on sale at a 20% discount. what is the t
    7·1 answer
  • Which equation represents a nonproportional relationship?
    7·1 answer
  • Which set of ordered pairs represents a function?
    11·1 answer
  • What is the answer to 1 1/3 • 1 1/2
    11·1 answer
  • What is the value of x?<br><br> x = ___
    13·1 answer
  • Two stores sell the same shirt at the same price. Both stores decide to sell the shirt at a discounted price.
    15·1 answer
  • Link for paper and help!!
    11·1 answer
  • -9x + 15 = -48 ?????????????????????/
    5·1 answer
  • Jerry has $558 to spend on dining room chairs. if each chair costs $58, does he have enough to purchase nine chairs
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!