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nexus9112 [7]
3 years ago
6

A plumber charges a service fee of $40 plus $25 per hour for labor. Write a function rule for the total cost of hiring the plumb

er for a job that takes x hours. How much would it cost to hire the plumber for a job that takes 4 hours?
Mathematics
1 answer:
larisa86 [58]3 years ago
5 0

Answer:

40+25x= total price   four hours=40+(25*4) or 140

Step-by-step explanation:

40 is original and 25 is per hour. so 40+25x(x stands for hours) and 40+25x if 4 is the variable it is 40+(25*4)

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In standerd form what is the answer to y=6x-1 looking for x
horrorfan [7]

Answer:

x=1/6 or 1.16 (6 repeating) or x=6^-1

Step-by-step explanation:

y=6x-1

substitute y =0

0=6x-1

Move the variable to the left

-6x =-1

Divide on both dies

3 0
3 years ago
Expand and simpilify (x+2)(x+1)
Cerrena [4.2K]

Answer:

x^2+3x+2

Step-by-step explanation:

(X+2)(x+1)

Is x^2+x+2x+2

x^2+3x+2

4 0
3 years ago
What is the value of this expression when<br> d= 47 and f = 3?<br> 6 (d - f) +f
agasfer [191]

Answer:

267

Step-by-step explanation:

We are given the expression:  6 (d - f) +f

The value of the expression when d= 47 and f = 3 is :

6 (47 - 3) +3 = 6×(44) + 3 = 264 + 3 = 267

=267

7 0
2 years ago
Car A used 40.5 L of gasoline to travel 450 km. Car B used 18.7 L to travel 220 km. Circle the car with better fuel mileage. Jus
kvasek [131]

Answer:

Car B has the better fuel economy.

Step-by-step explanation:

Calculate the fuel consumption for the two cars:

Car A:  (450 km) / (40.5 L) = 1.11 km per L

Car B:  (220 km) / (18.7 L) = 1.18 km per L

Car B goes further on one L of gasoline than Car A.  

3 0
2 years ago
Which of the following is not a requirement of a standard form equation Ax+By=C? a)A ≥ 0. b)B ≥ 0. c)A and B are not both 0. d)A
Ghella [55]
<h2>Answer:</h2>

The following which is not a requirement of a standard form of equation Ax+By=C is:

        b)   B ≥ 0    

<h2>Step-by-step explanation:</h2>

We know that the standard equation of a line is given by:

        Ax+By=C

where A,B and C are integers and A is taken to be a non-negative integer i.e. (A≥0) also the greatest common factor of A,B and C is: 1.

Also A and B can't be both zero.

       Hence, the correct option is:

                Option: b

7 0
2 years ago
Read 2 more answers
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