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
sladkih [1.3K]
3 years ago
7

Today only, a sofa is being sold at a 72% discount. The sale price is 218.40.

Mathematics
1 answer:
EastWind [94]3 years ago
5 0

Answer:

780

Step-by-step explanation:

Let x be the original price

x - x*72% is the new price

x - .72x = 218.40

.28x = 218.40

Divide each side by .28

.28x/.28 = 218.40/.28

x =780

You might be interested in
G(x)=x^4-32x^2+256;x=-4
Sindrei [870]

Answer:4

Step-by-step explanation:

6 0
3 years ago
Given g(x)=5x+4, solve for x when g(x)=9
Alex

Answer:

The value of <em>x</em> is equal to 1, written as <em>x</em> = 1.

General Formulas and Concepts:
<u>Algebra I</u>

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality

Terms/Coefficients

Functions

  • Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

g(x) = 5x + 4

g(x) = 9

<u>Step 2: Solve for </u><u><em>x</em></u>

  1. Substitute in function value:                                                                           9 = 5x + 4
  2. [Subtraction Property of Equality] Subtract 4 on both sides:                       5 = 5x
  3. [Division Property of Equality] Divide 5 on both sides:                                1 = x
  4. Rewrite:                                                                                                            x = 1

∴ when the function g(x) equals 9, the value of <em>x</em> that makes the function true would be <em>x</em> = 1.

---

Topic: Algebra I

8 0
2 years ago
What is the simplified expression for 5ab+9ab-ab
Ulleksa [173]
The simplified expression is 13ab
3 0
3 years ago
I need help with these two fraction questions :(
sammy [17]

Answer:

6 \times \frac{13}{24}

5 0
3 years ago
Solve the system of linear equations by substitution
elena-s [515]
There is the equal values method, so you can do:

x-4 = 4x-10 (remove x from both sides)
-4 = 3x -10 (add ten to both sides)
6 = 3x  (devide by 3x)
2 = x

Check: (by plugging it into the equation)
y = 2-4 and y = 8-10
y = -2 and y = -2
that's matches so it is correct...
 YOUR ANSWER IS:
(2, -2)

I hoped I helped sort things out, and have a great day!
7 0
3 years ago
Read 2 more answers
Other questions:
  • 125 thousands=1 tenth___________thousandths
    12·2 answers
  • Jason and his mother are re-tilling the kitchen floor .The area of the kitchen floor is 96.75 square feet. Each tile has an area
    10·1 answer
  • Zoey found that box of dog food was left in the pantry. She shared this food equally among her 4 dogs. What fraction of the full
    13·2 answers
  • Why 6:4 and 18:8 are not equivalent ratios
    13·2 answers
  • Which of the following sets of points would create a rectangle when connected?
    11·1 answer
  • Is 5 1/2 bigger then 5 3/8
    7·2 answers
  • Identify the independent variable in the following scenario. A nutritionist believes that the use of honey may reduce the freque
    5·2 answers
  • I realy need help please​
    14·2 answers
  • 83, 15, 50, 28, 52, 96 - What is the mean? What is the mode? What is the median?
    14·2 answers
  • PLEASE HELP ME! I WILL GIVE YOU BRAINLEST!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!