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
Juliette [100K]
2 years ago
11

An electrician charges a flat fee for each job plus an hourly rate . He charged one customer $90 for a job that took him 3 hours

. He charged another customer $150 for a job that took him 8 hours . Which equation models the relationship?.
Mathematics
1 answer:
lianna [129]2 years ago
4 0

Answer:

let x equal the service charge.

let y equal the per hour charge.

for the job that cost 450, the equation is 450 = x + 6y

for the job that cost 330, the equation is 330 = x + 4y

these two equations needs to be solved simultaneously.

subtract the second equation from the firs to get 120 = 2y

solve for y to get y = 60.

in the first equation, replace y with 60 to get 450 = x + 6*60.

simplify to get 450 = x + 360.

subtract 360 from both sides of the equation to get 90 = x.

it appears that the service charge is equal to 90 and the per hour charge is equal to 60.

for the job that cost 450, the equation becomes 450 = 90 + 6*60 = 90 + 360 = 450.

for the job that cost 330, the equation becomes 330 = 90 + 4*60 = 90 + 240 = 330.

the numbers check out.

the service charge is 90.

the per hour charge is 60.

i believe your solution is that the electrician charges a flat fee of 90 plus an hourly fee of 60 for a service call.

Step-by-step explanation:

You might be interested in
Is 0.762050555854466 rational or irrational and why
Rainbow [258]

Answer:

No

Step-by-step explanation:

This is because it is a forever ongoing number. Here is an examples 7, pie, 5, and 2

tell me if this helped pls mark brainliest

9 0
2 years ago
Equivalent to (6 + y) × 5?
Sergeeva-Olga [200]
The answer is:
It’s equivalent to 30+5y
6 0
2 years ago
Read 2 more answers
Write 0.245bar in the form p/q
frozen [14]

Answer:

245/999

Step-by-step explanation:

0.245bar = n

1000 n - n = 245

999n = 245

n = 245/999

6 0
3 years ago
What is 5/4÷1/10? because i don't know what it is
Genrish500 [490]

Answer:

25/2

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
John is at a local bait shop; he wants to buy bait for his fishing trip. At the store, they are selling live bait for $12 a poun
brilliants [131]

Answer:

Step-by-step explanation:

x= live bait and y= natural bait

12x+7y=63

x>3

x can be anywhere between 3 and 5.

when x=3, y=3

when x=4, y=2

when x=5, y=0

3 0
2 years ago
Read 2 more answers
Other questions:
  • An urn contains 78 slips of paper. Each slip bears a number from 1 to 26. Each number appears on 3 different slips. A child sele
    14·1 answer
  • Can someone please help me with this question? Please and thanks in advance
    12·1 answer
  • Betty bought two bags full of books at an annual library book sale. If she
    12·2 answers
  • 20 points best answer gets brainliest
    15·1 answer
  • Can someone help me or is this website a waste of time
    7·1 answer
  • Four bakers used the following amounts of flour and sugar in their favorite cake recipe. Which bakers use the same flour to suga
    8·1 answer
  • Find the value of x in the figure.<br> 57°<br> (x+23)<br> X =
    7·2 answers
  • Select the correct answer. How can you write the expression 7(b – 2) in words? A. Two subtracted from the quotient of seven divi
    15·2 answers
  • Which is greater 3.75 3.750
    7·1 answer
  • corey paid for a dinner and left a 15% or $3.45 in tips. How much was the original bill without counting the tip?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!