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
Aleksandr-060686 [28]
3 years ago
7

The graph represents a system of linear equations comparing the outside and inside temperatures y, in degrees Fahrenheit, record

ed at a school one day x hours after 8:00 a.m. After how many hours were the inside and outside temperatures equal?
Mathematics
2 answers:
Annette [7]3 years ago
7 0

Answer:its 8 hours

Step-by-step explanation: cuz it says how many hours it took to be the same temperature

bixtya [17]3 years ago
4 0
It will be the point at which the two lines intersect (the x point where the two of them have the same y value).  Hope that helps :)
You might be interested in
4 1/3 x 4 2/5 simplify
Artemon [7]

Answer:

I am pretty sure that the answer is 19 1/15! Hope this helps!!!!!!

3 0
3 years ago
Tinas rent will increase from $595 this year to $708 next year what is the percent change to the nearest percent
snow_lady [41]

Answer:

The answer rounded to the nearest percent is 19%.

Step-by-step explanation:

The formula for percent change is this:

((y2 - y1) / y1)*100

Let y1 be the first value (595) and let y2 be the second (708).

((702 - 595) / 595)*100

702 - 595 is 107 and 107/595 is approximately 0.188, multiplied by 100 is 18.8, which is rounded to 19%.

That is our solution.

<em>And that's an awfully small amount of rent to pay (at least in California).</em>

4 0
3 years ago
Read 2 more answers
Find the range of the function for given domain <br> f(x)=2x-7; (-2,-1,0,1,2)
Gelneren [198K]

Answer:

  {-11, -9, -7, -5, -3}

Step-by-step explanation:

Put each domain value into the function to find the corresponding range value. The range is the list of all of those values.

__

  range = f(domain)

  = 2{-2, -1, 0, 1, 2} -7 = {-4, -2, 0, 2, 4} -7

  = {-11, -9, -7, -5, -3} . . . . . the range for the given domain

_____

If you have a lot of function values to find, a spreadsheet or calculator can be helpful.

4 0
3 years ago
The answer is 5,-2,-3 but i need help with steps that make sense
olga nikolaevna [1]

\left\{\begin{array}{ccc}x+3y-z=2\\4x+2y+5z=1\\3x+z=12&\to z=12-3x\end{array}\right\\\\\text{substitute the value of z to the first and second equation}\\\\\left\{\begin{array}{ccc}x+3y-(12-3x)=2\\4x+2y+5(12-3x)=1\end{array}\right\\\\\left\{\begin{array}{ccc}x+3y-12+3x=2&|+12\\4x+2y+60-15x=1&|-60\end{array}\right\\\\\left\{\begin{array}{ccc}4x+3y=14&|\cdot2\\-11x+2y=-59&|\cdot(-3)\end{array}\right

\underline{+\left\{\begin{array}{ccc}8x+6y=28\\33x-6y=177\end{array}\right}\ \ \ \ |\text{add both sides of the equations}\\.\ \ \ \ \ \ \ 41x=205\ \ \ \ |:41\\.\ \ \ \ \ \ \ x=5\\\\\text{substitute the value of x to the first equation}\\\\4(5)+3y=14\\20+3y=14\ \ \ \ |-20\\3y=-6\ \ \ \ \ |:3\\y=-2\\\\\text{substitute the value of x to the equation:}\ z=12-3x\\\\z=12-3(5)=12-15=-3\\\\x=5,\ y=-2,\ z=-3\to(5,\ -2,\ -3)

6 0
3 years ago
Which statement best describes why the value of the car is a function of the number of years since it was purchased?
Scrat [10]

Answer:

B

Step-by-step explanation:

The definition of a function is that any input will only have one output. Here, the input is the number of years, and the output is the value of the car. We know this because the question is asking why the value of the car is a function of the number of years. Therefore, based on the number of years, the value of the car is given.

Going back to the definition of a function, we can apply this year to say that any number of years will only have one car value. Another way to say this is that each time is associated with exactly one car value.

7 0
2 years ago
Other questions:
  • Interior angle of triangles
    6·1 answer
  • A shoreline is eroding at a rate of 1/3 foot per 3 months . How many feet are eroding per year?
    13·1 answer
  • Pls help me with this question thanks:)
    7·2 answers
  • Kendra wants to pay 500 photographs into an album 6 photos to a page she figures that she will need about 100 pages
    7·2 answers
  • In order for the parallelogram to be a rhombus x=
    10·1 answer
  • PLZ SOMEONE HELP ME THIS IS URGENT AND MY MATH TEACHER IS REALLY STRICT PLZ HELP???
    5·2 answers
  • Fill in the blanks to complete the sentences about zero pairs.
    5·1 answer
  • Can someone please answer this question. ASAP. put it as an whole number. NOT A FRACTION.
    5·2 answers
  • A system of equations is shown below. Solve for x.<br><br> y = x² - 6x + 4<br> y = x + 1
    7·1 answer
  • PLS HELP PLS
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!