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
Finger [1]
3 years ago
9

The sum of the digits of a two-digit number is 6. when the digits are reversed, the number decreased by 18. find the original nu

mber.
Mathematics
1 answer:
poizon [28]3 years ago
3 0
<span>2x + x = 12
=> x =12/3 =4
so, original number is 84.</span>
You might be interested in
The function h(x)=4/3x-1 represents the composite h(x)=f(g(x)).if f(x)=2x-1,what is g(x)
Hunter-Best [27]

Answer:

g( x) = \frac{2}{3}x

Step-by-step explanation:

Given:

Composite Function:

h( x)=f( g( x))

Also,

h( x)=\frac{4}{3}x-1

To find:

g( x )  = ?

Solution:

First of all, let us learn about a composite function.

Composite function f( g( x)) means to write g( x) in place of x in the function f( x).

Let g( x) = y

So, f( g( x)) =  f( y ).

Therefore,

h( x) =f( g( x)) = f( y)

So, f( y) = 2y-1

We have to solve for y in terms of x to find the value of g(x):

\Rightarrow \frac{4}{3}x-1 = 2y-1\\\Rightarrow 2y=\frac{4}{3}x\\\Rightarrow y = \frac{2}{3}x

Hence, the answer is g(  x ) = \frac{2}{3}x.

Checking whether the answer is correct or not:

f( g( x)) = f( \frac{2}{3}x) = 2\times \frac{2}{3}x -1 = \frac{4}{3}x-1

which is h( x).

Hence, our answer g( x ) = \frac{2}{3}x is correct.

6 0
3 years ago
Read 2 more answers
Please help!!! Will give brainliest!
cluponka [151]

Answer:

C) $584.93

Step-by-step explanation:

beginning of year 5 means no interest is being added to the principal since the end of year 4; therefore the exponent must reduce 5 by 1

7 0
2 years ago
Read 2 more answers
What is the area of jkl in square units
Goryan [66]

Answer:

I thin kits 490.8, if not, then its 431.4. But its most likely 490.8.

3 0
3 years ago
Someone help me pls
NNADVOKAT [17]

Answer:

its either 12.5 or 32

Step-by-step explanation:

6 0
3 years ago
If f(x) = 2x to the second power - 10, find f(5)
Aleksandr [31]
F(5) = 2(5)^2 - 10
f(5) = 2(25) - 10
f(5) = 50 - 10
f(5) = 40
7 0
3 years ago
Other questions:
  • Which are equivalent to 3^2 x 3^4? check all that apply.
    13·1 answer
  • Question is in the screenshot
    14·1 answer
  • What are the factor pairs of 46 and 76
    10·2 answers
  • 25. What is the equation of a line that has a slope of 3 and passes through the point (1, 2)?
    15·1 answer
  • A helicopter descends at a rate of 450 feet per minute write the equation and sole the change in altitude of the helicopter afte
    12·1 answer
  • PLEASE HELP .!!! ILL GIVE BRAINLIEST.. *EXRTA POINTS* .. DONT SKIP :(( ! <br> ILL GIVE 40 POINTS .
    7·2 answers
  • The perimeter of tinas rectangular garden is 60 feet
    6·1 answer
  • Pls help me it would mean a lot &lt;3
    14·2 answers
  • given f(x)=3x^2-9x+k, and the remainder when f(x) is divided by x+1 is 14, then what is the value of k?
    9·1 answer
  • Hi i need help with this math question
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!