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BartSMP [9]
3 years ago
8

ALGEBRA

Mathematics
2 answers:
sweet [91]3 years ago
7 0
The final bill is $544
The parts is a one time bill of $265
The labor is $48 per hour, and lets call the hours 'h'

So we can make the equation as:

544 = 265 + 48h

Subtract 265 n both sides

279 = 48h

Divide by 48 on both sides

h = <span>5.8125

So the number of hours of labor spent repairing the car is </span><span>5.8125.</span>
AnnZ [28]3 years ago
3 0
The equation would be
544 = 265 + 48x

The first step is to subtract 265 from both sides.
279 = 48x

The next step is to divide by 48 on both sides.
x=5.8125

That means that the mechanic worked for 5.8125 hours.
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X^2+6X=16 is a quadratic equation what are the solutions?
IgorC [24]
The answer is 2,-8.
But I am not sure. Hope this will help you!
4 0
3 years ago
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Sorting Quadratic Function Discriminants
nataly862011 [7]

The number of zeros of the quadratic functions, considering their discriminant, is given as follows:

  • discriminant = 0: 1 Real number solution.
  • discriminant = -36: 0 Real number solutions.
  • discriminant = 3: 2 Real number solutions.
  • discriminant = 2: 2 Real number solutions.
  • discriminant = 100: 2 Real number solutions.
  • discriminant = -4: 0 Real number solutions.

<h3>What is the discriminant of a quadratic equation and how does it influence the solutions?</h3>

A quadratic equation is modeled by:

y = ax^2 + bx + c

The discriminant is:

\Delta = b^2 - 4ac

The solutions are as follows:

  • If \mathbf{\Delta > 0}, it has 2 real solutions.
  • If \mathbf{\Delta = 0}, it has 1 real solutions.
  • If \mathbf{\Delta < 0}, it has 0 real solutions.

Hence, for the given values of the discriminant, we have that:

  • discriminant = 0: 1 Real number solution.
  • discriminant = -36: 0 Real number solutions.
  • discriminant = 3: 2 Real number solutions.
  • discriminant = 2: 2 Real number solutions.
  • discriminant = 100: 2 Real number solutions.
  • discriminant = -4: 0 Real number solutions.

More can be learned about quadratic functions at brainly.com/question/24737967

#SPJ1

5 0
1 year ago
HELPPPP PLEASE!!!! Don't understand
iragen [17]

Answer: 20% is your answer


Step-by-step explanation:

180-150=30

30 divided by 150 = .2 which is 20%

7 0
3 years ago
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The manager at Gabriel's Furniture Store is trying to figure out how much to charge for a bookshelf that just arrived. The books
melomori [17]

First: markup rate × wholesale price = amount of markup

Second: Well the markup rate is a percentage, you have to convert it into a decimal. Percent means "out of one hundred," so <span>80%</span> is equivalent to <span>80/100 </span>which is also equal to <span>80÷100</span>.

<span>Third: 80÷100=0.80</span>

0.80 × $93.00 = $74.40

Fourth: The markup rate is a percentage of the wholesale price that is added to get the retail price, you can find the retail price with the following equation: amount of markup + wholesale price = retail price

<span>$74.40</span> + <span>$93.00</span> = <span>$167.40</span>

The retail price of the chair should be <span>$167.40</span>.

7 0
3 years ago
Simplify<br> (x – 3) (232 – 4x – 7)
11111nata11111 [884]

Answer:

-4x^2 + 237x - 675

Step-by-step explanation:

(x - 3)*(232 - 4x -7)                            >> Distribute x and -3 to the trinomial

232x - 4x^2 - 7x - 696 + 12x + 21     >> Simplify

-4x^2 + 237x - 675

3 0
2 years ago
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