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
nikklg [1K]
3 years ago
6

When you reverse the digits in a certain two-door number you increase its value by 27. What is the number if the sum of its digi

ts is 11?
Mathematics
1 answer:
V125BC [204]3 years ago
7 0
Ab has a value in the decimal system as:

10a+b

This number reversed has a value of 10b+a and we are told that this value is 27 more than the original so

10b+a+27=10a+b

9b-9a+27=0  

9b-9a=-27

b-a=-3  

a=b+3  and we are also told that a+b=11, b=11-a so

a=11-a+3

2a=14

a=7 and b=4

So the original number was 47

check...

74-47=27

and 

7+4=11
You might be interested in
Subtract and simplify if can. Show all work ! <br><br> 7/12 - 3/4 = ? <br><br><br> Show steps.
STatiana [176]

Answer:

=- 1/6

Step-by-step explanation:

=7/12 - 3/4

=7-9/12

=-2/12

=-1/6

8 0
3 years ago
The function g(x) = 3x2 − 12x + 7 written in vertex form is g(x) = 3(x − 2)2 − 5. What is the vertex of g(x)?
faltersainse [42]

Answer:  The correct option is (C). (2, -5).

Step-by-step explanation:  The given function is

g(x)=3x^2-12x+7.

The vertex form of the function g(x) is g(x)=3(x-2)^2-5~~~~~~~~~~~~~~~~~~~~~~(i)

We know that if the vertex form of a function f(x) is written as

f(x)=a(x-h)^2+k,

then its vertex is (h, k).

So, from equation (i), we can say that the vertex of function g(x) is

(2, -5).

Thus, (C) is the correct option.

5 0
3 years ago
Read 2 more answers
I need answer for question 13
Mademuasel [1]

730/27 or improper fractions 27 1/27

6 0
4 years ago
Find a recurrence relation for the number of strictly increasing sequences of positive integers that have 1 as their first term
exis [7]

Answer:

Step-by-step explanation:

(1)

a_i = a_{i-1} + 1

(2)

The initial condition is a_1 = 1

(3)

Infinitely many.

7 0
3 years ago
Divide. Round to the nearest tenth<br><br> .16 divided by .03220
Flauer [41]

Answer

.16/.03220 is 4.96894409938   rounded= 5.0

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • Help me please,thnx smh
    7·1 answer
  • What percent is represented by the shaded portion of this 10 × 10 grid? A grid model has 100 squares. 40 squares are shaded. Sta
    13·2 answers
  • I need to know ASAP!!!!!!
    9·1 answer
  • URGENT!! MUST ANSWER QUICKLY!!! WILL GIVE BRAINLIEST IF CORRECT!!
    8·2 answers
  • Y is 5 when x is 2.5, and y varies directly with x.. Find y when x is 10.. 5. 7.5. 12.5. 20
    12·1 answer
  • X f(x)
    8·1 answer
  • I need help plz! plz don't just do this for the points!<br><br> See image below!
    13·2 answers
  • What is the sum of (8 at 26-4)
    6·1 answer
  • Find the value of X to the nearest Tenth.
    14·1 answer
  • Shaquil needs to borrow $400. the loan company charges him $80 in fees for the loan. shaquil calculates that the annual percenta
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!