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
Alexus [3.1K]
3 years ago
5

Write the statement for the problem in mathematical language. Use x for the tens digit and y for the unit digits in the two digi

t numbers. Find the two-digit number which is 2 times the sum of its digits
Mathematics
1 answer:
Nutka1998 [239]3 years ago
8 0

Answer:

  18

Step-by-step explanation:

A two-digit number (xy) will have the value 10x+y. The sum of its digits is x+y.

You want ...

  10x +y = 2(x +y)

  1 ≤ x ≤ 9

  0 ≤ y ≤ 9

The equation can be simplified to ...

  8x = y

The only single-digit values for x and y that satisfy the requirements are ...

  x = 1, y = 8

The two-digit number of interest is 18.

_____

<em>Check</em>

Its sum of digits is 1+8 = 9. 2×9 = 18.

_____

<em>Comment on the relationship in the problem</em>

Many of us learned our multiplication tables for 9s by remembering that the sum of digits of 9n was 9, and that the leading digit of the product was n-1.

You might be interested in
___<br>H is the midpoint of IJ and IH = 0.75 find HJ<br>​
insens350 [35]
The answer is 1.5 bc 0.75 times 2 since it’s the midpoint
3 0
2 years ago
Will mark brainliest
Angelina_Jolie [31]

Answer:

K (-1,-1)

Step-by-step explanation:

4 0
2 years ago
Please help me, its due today
nasty-shy [4]

Answer:

No, u keep going around and answering questions with sorry i don't know the answer and its pising me off, so just stop before you get your account reported too many times and end up getting banned from answering questions.

7 0
3 years ago
What is the average rate of change from x = −4 to x = 1?
kati45 [8]

Answer:

What is the average rate of change from x = −4 to x = 1? x= -4 x + 5

5 0
2 years ago
What is the measure in radians for the central angle of a circle whose radius is 6 cm and intercept arc length is 5. 4 cm?
Vedmedyk [2.9K]
Ok, so find circumference
arc/circumferece=xrad/2pirad


c=2pir
c=2pi6
c=12pi
arc=5.4cm

5.4/12pi=x/2pi
tims both sides by 2pi
5.4/6=x
0.9=x
0.9 radians
4 0
3 years ago
Other questions:
  • What is the overlap of Data Set 1 and Data Set 2? high moderate low none Two line plots aligned vertically so that their labels
    8·2 answers
  • A length of string is 42 1/2 inches long.
    15·2 answers
  • X + 2y + 5z = -17<br> 2x – 3y + 2z = -16<br> 3x + y - z = 3
    6·1 answer
  • To complete such a customer at your store needs to purchase vertical brackets to attach to the wall the customer wants to show t
    10·2 answers
  • The recommended time to take a math test is 23 minutes. you complete it in 18 minutes. what is the percent change between your t
    12·2 answers
  • Write an equation in point slope form of the line that passes through the point -4, 5 and has the slope of one.
    6·1 answer
  • What is the nth term rule of the linear sequence below?<br> 13, 7, 1, -5, -11,...
    11·2 answers
  • PPLLLEEEAAAASSSSEEEE HHHEEELLLPPPP!!!!!!
    13·1 answer
  • What is the sum of 12 1/4and it’s additive inverse ?
    13·1 answer
  • Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $28 monthly fee
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!