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
Likurg_2 [28]
3 years ago
8

Please!!!! HELP ME!! I give brainlyest!!! are u my friend? The table below models the cost, y, of using a high-efficiency washin

g machine and a standard washing machine over x number of years. Which equation represents the cost of the high-efficiency washing machine over a given number of years? Which equation represents the cost of the standard washing machine over a given number of years? After how many years of use would the washing machines cost the same amount? Which washing machine would be the more practical purchase if kept for 9 years? ugh...
Mathematics
1 answer:
horsena [70]3 years ago
5 0

Answer:

y= 25x+500

y=30x+400

20

standard machine

Step-by-step explanation:

just did it on edge!! :D

You might be interested in
Write the equation of the circle in standard form: Center (7,0) R=1
Mice21 [21]

Answer:

(x-7)^2+y^2=1

Step-by-step explanation:

Hi there!

Equation of a circle: (x-h)^2+(y-k)^2=r^2 where the circle is centered at (h,k) and the radius is r

<u>1) Plug in the given center (7,0)</u>

(x-7)^2+(y-0)^2=r^2\\(x-7)^2+y^2=r^2

<u>2) Plug in the radius (1)</u>

(x-7)^2+y^2=1^2\\(x-7)^2+y^2=1

I hope this helps!

8 0
3 years ago
7r-5r+8=9r+8-r translate to an equation, then solve
pshichka [43]

Answer:

r=0

Step-by-step explanation:

7r-5r+8=9r+8-r

This is already an equation

Combine like terms

2r+8 = 8r+8

Subtract 2r from each side

2r-2r +8 = 8r-2r +8

8 =6r+8

Subtract 8 from each side

8-8 = 6r+8-8

0 = 6r

Divide by 6

0/6 = 6r/6

0 =r

7 0
3 years ago
Someone's quiz grades in the second quarter. (78, 90, 95, 84, 80, 82, 87, 98, 72 ) Find the Median.
jeka57 [31]

Step-by-step explanation:

I believe the answer is 80 cuz it's in the middle

7 0
3 years ago
Read 2 more answers
In the equation x square + 5x - 14 =0, the solutions are?​
Hoochie [10]

Answer:

-2,7

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
For what values of the variable are the following expressions defined?
Rom4ik [11]

Answer:

  • The Expression will be defined if the denominator is not equal to 0 since any number divided by 0 is undefined.
  • Therfore our main priority here is to check the denominator only because it's the only part that can make the expression undefined
  • the expression will be defined for all real numbers (a) BUT 3+a must not equal to 0 therfore (a) can be all real numbers but must never be equal to -3

Step-by-step explanation:

  • a \: is \: an \: element \: of \: all \: real \: numbers \: but \: not \: not \: equal \: to \:  -3
  • HOPE THIS HELPS!
3 0
2 years ago
Other questions:
  • A small grocery store had 10 cartons of milk, 2 of which were sour. If you are going to buy the 6th carton of milk sold that day
    6·1 answer
  • The length of an object is measured as 25.8 centimeters. What is the length in scientific notation?
    8·2 answers
  • Determine the amount you need to invest to have $22,000 dollars in 4 years if you invest at 5% annual interest, compounded quart
    11·1 answer
  • Joe solved this linear system correctly.
    10·1 answer
  • Ticket prices were on sale from $7.50 to $4.00. What is the percent of decrease rounded to the nearest tenth?
    8·1 answer
  • I need help on 3,4 and 5!!!Please!!!
    11·2 answers
  • Which fraction is in lowest terms (simplest form) 12/18
    15·2 answers
  • 0.88 as a fraction in simplest form
    12·2 answers
  • Simplify: -8c + w + 6c - 5w<br><br> I will give Brainliest and Thanks
    9·2 answers
  • A sphere has a diameter of 12 ft. What is the volume of the sphere? Give the exact value in terms of Pi.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!