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
tiny-mole [99]
3 years ago
9

The sum of the digits of a two-digit number is 8. The difference between the number and the reversed number is 10 more than the

reversed number. Find the number.
Mathematics
1 answer:
Vesna [10]3 years ago
5 0

Answer:

The number is 62

Step-by-step explanation:

Let the digits of the number be T and U;

A 2 digit number is represented as: 10T + U

So,

T + U = 8

10T + U - (10U + T) = 10 + 10U + T

Required

Find the digit

Make U the subject in the first equation

U = 8 - T

Substitute 8 - T for U in the second

10T + U - (10U + T) = 10 + 10U + T

10T + 8 - T - (10*(8-T) + T) = 10 + 10(8 - T) + T

10T + 8 - T - (80-10T + T) = 10 + 80 - 10T+ T

10T + 8 - T -80+10T - T = 10 + 80 - 10T+ T

Collect Like Terms

10T + 10T - T- T + 8  -80 = 10 + 80 - 10T+ T

18T -72 = 90 - 9T

9T + 18T  = 90 + 72

27T  = 162

T = 162/27

T = 6

Recall that:

U = 8 - T

U = 8 - 6

U = 2

<em>Hence, the number is 62</em>

You might be interested in
HELP ME PLZ ASAPPPPPP
boyakko [2]

Answer:

(x,y) =(-4,-3) --- Vertex

x = -4 --- Axis of symmetry

Step-by-step explanation:

Given

y = -6(x + 4)^2 - 3

Solving (a): The vertex

For an equation written in

y = a(x - h)^2 + k

The vertex is:

(x,y) = (h,k)

By comparison:

y = a(x - h)^2 + k  and y = -6(x + 4)^2 - 3

-h =4       k = -3

h =-4         k = -3  

So, the vertex is:

(x,y) =(-4,-3)

Solving (b): The axis of symmetry

For an equation written in

y = a(x - h)^2 + k

The axis of symmetry is:

x = h

In (a):

h =-4

So:

x = -4

5 0
2 years ago
Please answer asap it’s due in 1 min procrastination
Ipatiy [6.2K]

Answer:

r=ts/-qu

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
91403 divided by 21. Show work
My name is Ann [436]

Answer:

The given Divisor = 21 and Dividend = 91403

43522191403847463110105534211

The Quotient is 4352 and the Remainder is 11

8 0
3 years ago
Read 2 more answers
HURRY PLEASE 6TH GRADE MATH HERE. A football field is 100 yards in length. How many inches long is a football field? 300 inches
Rufina [12.5K]

Answer:

3,600

Step-by-step explanation:

1 yard= 36 inches

36 inches*100= 3,600

__________________________________________________________

Brainliest? I am trying to get to a new rank so I can help more people and I would totally appreciate it if you did!

Merry Christmas!

3 0
3 years ago
Read 2 more answers
If x= –4 and y= 3 , what is the value of x–3y2 ?
Tpy6a [65]

Answer:

-31

Step-by-step explanation:

(-4)-3(3)^2

-4-3(9)

-4-27=-31

5 0
3 years ago
Read 2 more answers
Other questions:
  • true of false. if the movement of a mass on a spring may be modeled with simple harmonic motion, then its frequency decreases wi
    8·2 answers
  • Determine whether each pair of lines are parallel, perpendicular, or neither. line n: y = -2x-4 line m: y = -2x+8
    6·1 answer
  • Help please thanks!! (:
    6·1 answer
  • Fill in the two blank boxes!!! help plzzz<br><br>sorry this is not math lol its science
    6·1 answer
  • What is the answer for this cause the answer I put is incorrect
    13·1 answer
  • Find the measure of each interior angle
    9·1 answer
  • Rewrite `10^{32}\ \/ \ 10^{6}\ `using a single exponent.
    11·1 answer
  • Please help i give extra pts
    11·1 answer
  • mr king is considering a new job. he and his wife sit down and create a list of their monthly expenses, as shown below. which of
    8·1 answer
  • Last year 120 students went on the annual school trip to Fiorida. This year. 225 students went What was the percent increase of
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!