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
motikmotik
2 years ago
11

The tens digit of a two-digit number is 3 less than the units digit. Find the original number, if the sum of that number and the

number reversed is 143.
Mathematics
2 answers:
vlada-n [284]2 years ago
7 0

Let...

x=ones digit

x-3=tens digit

The number in terms of x would be...

10(x-3)+x = 11x-30

The number with its digits reversed would be...

10(x)+x-3 = 11x-3

And...

11x-30+11x-3=143     We can solve for x!

22x=176

x=8

The number would be 58.

answer: 58

cricket20 [7]2 years ago
4 0

Answer:

58

Step-by-step explanation:

8-5=3

58+85=143

You might be interested in
Which rule will find the nth term of the arithmetic sequence<br> -58,-65, -72. -86,...?
Olenka [21]

Answer:

-85n - 7  = -92

Step-by-step explanation:

4 0
3 years ago
Clara has 6x - 7 pairs of shoes while Daniel has 2x + 3 pairs of shoes. How many more pairs of shoes does Clara have than Daniel
ale4655 [162]

Step-by-step explanation:

This is a binomial subtraction problem.

(6x-7)-(2x+3)

Binomial subtraction problems require one to phrase the problem as addition by flipping the signs.

(6x-7)+(-2x-3)

Now we can simplify:

6x-7-2x-3

4x-7-3

4x-10

So the answer is 4x-10 more pairs of shoes than Daniel.

See if that works.

Hope this helps!

8 0
3 years ago
Select the correct answer. During the summer, Jody earns $10 per hour babysitting and $15 per hour doing yardwork. This week she
omeli [17]

Answer:

  A.  x + y = 34; 10x + 15y = 410

Step-by-step explanation:

Jody's total hours will be the sum of the hours spent on each job:

  x + y = 34 . . . . . total hours

Jody's total earnings will be the sum of the earnings from each job:

  10x +15y = 410 . . . total earnings

So, the system of equations is ...

  • x + y = 34
  • 10x + 15y = 410
3 0
2 years ago
A marker costs $0.99. A pad of paper costs $1.25 more than the marker, which is a more reasonable estimate for the total cost of
andrew11 [14]

Answer:

$3

Step-by-step explanation:

Because you have to also think about tax of the item. Plus add them both up and it costs $2.24 without tax. Which means it's already above $2.

8 0
3 years ago
Given the formula for an arithmetic sequence f(7) = f(6) + 4 written using a recursive formula, write the sequence using an arit
natita [175]

Answer:

Of(7) = f(1) + 24

Step-by-step explanation:

Since this Arithmetic Sequence can be written recursively as a function, then we can write the whole sequence, by adding the common difference to the previous function. So writing it as an Arithmetic formula is (placing an example, with a common difference of 4 units):

\left.\begin{matrix}n &1&2&3&4&5&6 &7\\f(n)&2&6&10 & 14&18&22&26 \end{matrix}\right|\\f(n)=f(n-1)+d\:\: (Recursive \: Formula)\Rightarrow a_{n}=a_{n-1}+4\: \: \: (Arithmetic\: Formula)\\Of(7)=f(1)+6*4\Rightarrow a_{7}=a_{1}+(7-1)4\Rightarrow a_{7}=a_{1}+24\\

6 0
3 years ago
Read 2 more answers
Other questions:
  • Find the sum and express it in simplest form. (-5u^2+8u-1 )+(2u^2-6u)
    13·1 answer
  • HELP ME OUT PLEASE!!!!!!!!!
    5·1 answer
  • Woovis danced with 3/4 of the 24 dogs at the dance. How many dogs did Woovis dance with?
    11·1 answer
  • Based on the image, which list of 3 points are collinear?
    5·1 answer
  • What is the difference between graphing the inequality y &gt; x + 5 and y &lt; x + 5
    13·1 answer
  • Find the standard form of the following...<br> 26
    14·1 answer
  • Gary has $250.00 for school supplies. He spends twice as much money on books as he
    7·1 answer
  • Helpppppppppppppppp​
    13·2 answers
  • 11. A gift store owner used 9 rolls of wrapping paper to
    8·2 answers
  • What is the greatest perfect square that is a factor 1890
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!