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]
2 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]2 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
80% of what number is 16?
ANEK [815]
Part: 16
total: 20
percent: 80%
6 0
3 years ago
John states that all trapezoids have at least one line of symmetry.
IrinaK [193]
A
bc i got it right
7 0
3 years ago
Critical points of x+5/x+2>0
Scorpion4ik [409]

Answer:

{-5, -2}

Step-by-step explanation:

In a case like this please use parentheses to remove ambiguities.  If I were to take your "x+5/x+2" literally, I'd have to write x             plus 5/x           plus 2.

I suspect that you actually meant (x + 5) / (x + 2), and will start with that.

First of all, this function is not defined at x = -5 or at x = -2.  Thus, -5 and -2 are critical points.  

Secondly, there may be one or more critical points beyond this.  To find out, we have to differentiate (x+5)/(x+2):

           (x + 2)(1) - (x + 5)(1)

f '(x) = ------------------------------

                  (x + 2)

Here it's clear that x cannot = -2, which would cause division by zero.

Thus, our critical values are {-5, -2}.

8 0
3 years ago
Can someone please help me on this question? Use the following diagram to find the fraction representing each collection of dots
ale4655 [162]

Answer:

  a.  4/7

  e.  3/4

Step-by-step explanation:

For each part of the question, count the dots that meet the first requirement, and count the dots that meet the "fraction of ..." requirement. The desired fraction is the ratio of these numbers. In the answers above, we have reduced the fractions to lowest terms, but the question does not seem to require that.

__

a. The desired fraction is ...

  (dots in the triangle)/(all dots) = 16/28 = 4/7

__

e. (dots in the rectangle not in the circle)/(dots in the rectangle) = 9/12 = 3/4

8 0
2 years ago
HELP PLEASE ,, i need the right answer
____ [38]

Answer:

It's the first one

4 0
3 years ago
Read 2 more answers
Other questions:
  • Kurtis is expecting a promotion which, hopefully, comes with a raise. He would like his raise to help him correct a high debt-to
    8·1 answer
  • Please help!!! Use an algebraic equation to solve the problem. The sides of a triangle are in the ratio 3 : 4 : 5. What is the l
    12·2 answers
  • an ornithologist studying the flight of birds measured the efficiency for parakeets flying at various speed in a descending flig
    14·1 answer
  • -3=6m+5+4 i really need help with thid
    6·2 answers
  • Pick the geometric term that matches the real-world object: a deck of cards.
    12·2 answers
  • How do you find the circumference of a circle?
    5·1 answer
  • Bought 3 shirts that each cost the same. He had a coupon for $10 and he spent $65 in total. Which equation can be used to find t
    15·2 answers
  • 64 is 128% of what number?
    12·2 answers
  • Avery has a points card for a movie theater. She receives 75 rewards points just for signing up. She earns 6.5 points for each v
    11·2 answers
  • Given ΔABC, m∠C = 90° , m∠ ABC = 30° , AL ∠ Bisector CL = 6ft. Find LB (Feet)
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!