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
vova2212 [387]
3 years ago
10

25. John hired a plumber who charges a flat fee of $75 plus $55 per hour. The total charge

Mathematics
1 answer:
mestny [16]3 years ago
3 0

Answer: 55x + 75 = 350; 5 hours

Step-by-step explanation:

What we know:

- A flat fee is $75

- John charges $55 an hour

- The total charge is $350

We need to write an equation to find how many hours John works.

<em>x </em>will represent hours worked.

55x + 75 = 350

We now need to solve for x.

Subtract 75 from both sides.

55x + 75 - 75 = 350 - 75

Simplify.

55x = 275

Divide 55 from both sides.

55x/55 = 275/55

Simplify.

x = 5

John worked 5 hours.

To check our work, we just plug in our x value!

55(5) + 75

275 + 75 = 350

You might be interested in
Find the missing variable. <br> Round to the nearest tenth.
Ksju [112]

Answer:340 or 5 depends how your using it

Step-by-step explanation:

6 0
3 years ago
An electrician disconnected 5 wires of different colors from their respective connections and forgot the order in which they wer
Inessa05 [86]

Answer:

120 tries

Step-by-step explanation:

You can try 5 different wires in the first connection.

Then you have 4 wires left, so you try 4 wires in the second connection. Remember, you are now trying 4 wires for each of the first 5, so up to here you already made 4 * 5 tries = 20 tries.

Next you try 3, then 2, then you have 1 left.

Number of tries: 5 * 4 * 3 * 2 * 1 = 120

Answer: 120 tries

8 0
3 years ago
Is the following relation a function?
igomit [66]
I believe it is a function
4 0
3 years ago
For what values of x is the trinomial 2x^2-x+55 equal to the square of binomial x+5
jeka94

Answer:

x = 6 , 5. For these values of x they are equal.

Step-by-step explanation:

2x²  - x + 55 =(x +5)²

2x² - x + 55 = x² + 2*x*5 + 5²

2x² - x + 55 = x² + 10x + 25

2x² - x + 55 - x²  - 10x - 25 = 0

2x² - x² - x - 10x + 55 - 25 = 0

x² - 11x + 30 = 0

x² -6x - 5x  + 30 = 0

x(x - 6) - 5(x - 6) = 0

(x - 6)(x - 5) = 0

x - 6 = 0 ;  x - 5 = 0

x = 6      ;      x = 5

7 0
3 years ago
Read 2 more answers
How to solve this? Please explain your answer! Thanks!
Murrr4er [49]

Answer:

The mean.

Step-by-step explanation:

I would use the mean as the measure of central tendency.

It is the best representation of the data as the variability isn't high; I'd only use the median if outliers are present because outliers don't affect it.

Because there are no outliers here, the mean is better.

Hopefully I helped :)

4 0
3 years ago
Other questions:
  • If f(x) = x? - x, what is f(-5)?
    11·1 answer
  • Which is greater 0.3 or 3/8
    6·2 answers
  • I had finish to solve the problems from the sentences,but I got stuck when I barely realized that the cost of one daylily I got
    10·1 answer
  • If events A and B are independent and the probability that event A occurs is 83%, what must be true
    6·2 answers
  • Whisper won’t let me post or respond. Like I can type it out but it will just load. Everything else is just fine (Instagram etc.
    11·1 answer
  • Which graph represents y=square root of x
    14·1 answer
  • Help I need help on 4 help me as soon as possible and show me the equation
    6·1 answer
  • 30 Points
    15·2 answers
  • Please help ASAP!!!!
    15·1 answer
  • Bailey was practicing karate and kicked the target 6 out of 20 times. Express the number of times she kicked the target as a fra
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!