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
Vikki [24]
3 years ago
9

the tens digit of a 2 digit number is twice the units digit. The sum of the digits is 12. Find the original number

Mathematics
1 answer:
Nataly [62]3 years ago
7 0
<span>2x + x = 12 
=> x =12/3 =4 
so, original number is 84. </span>
You might be interested in
Please help ASAP I am in desperate need
Vlad1618 [11]

Answer:

x = 9

TH = 12

Step-by-step explanation:

since TM is half of HM, the equation is:

2(21 - x) = 3x - 3

42 - 2x = 3x - 3

45 = 5x

x = 9

TH = 21 - x

TH = 21 - 9

TH = 12

8 0
3 years ago
Which inequality represents all values of x for which the product below is defined?
Vedmedyk [2.9K]

Step 1 ) Separate the 4 and x.

\displaystyle\sqrt{4x} * \sqrt{x+2}

↓

\displaystyle\sqrt{4} \sqrt{x} \sqrt{x+2}

Step 2 ) Simplify the square root of 4.

\displaystyle\sqrt{4} \sqrt{x} \sqrt{x+2}

↓

\displaystyle\ 2 \sqrt{x} \sqrt{x+2}

Step 3 ) Simplify.

\displaystyle\ 2 \sqrt{x} \sqrt{x+2}

↓

\displaystyle\ 2 \sqrt{x(x+2)}

This is now in its simplest form, so the final answer is...

\displaystyle\ 2 \sqrt{x(x+2)}

or it could be...

\displaystyle\ 2 \sqrt{x} \sqrt{x+2}

Either one is correct. Only difference is one is in simplest form and one isn't.

•

•

- Marlon Nunez

7 0
3 years ago
Read 2 more answers
(-5, -1) and (1,9)<br> Answer:
xxMikexx [17]

Answer:

m = 5/3

Step-by-step explanation:

7 0
3 years ago
What is the awnser to 23 56/6 - 78 65/6
lukranit [14]
-56 \frac{1}{2}  is your answer

3 0
3 years ago
Read 2 more answers
What is the complement of 57?
umka21 [38]
Complements are numbers that add 90. Since one is 57, the other has to add to 57. So 33 would add with 57 to get 90.
4 0
3 years ago
Other questions:
  • Last week Martha sold brownies. And cookies at a back sale she sold 60 bowlines and 42 cookies on Saturday and 28 brownies and 5
    9·1 answer
  • How to solve the distributive property to express 27+60
    13·1 answer
  • As shown,Suzi starts her hike at an elevation below sea level.when she reaches the end of the hike,she is still below sea level
    11·1 answer
  • Ken predicts that the average temperature will be −5°C in December. If he predicts the temperature will rise 6°C in January and
    10·1 answer
  • the practice of farming which includes growing crops and raising animals to provide food and other products
    13·1 answer
  • Explain what a shrink is
    6·2 answers
  • North Carolina has 12 less electoral votes than Florida. Write &amp; solve a subtraction equation to find the number of electora
    14·1 answer
  • 1) help me please!!!!
    9·2 answers
  • The quotient of a number and-2
    6·1 answer
  • Is the equation y/x=8 direct variation, inverse variation, or neither? Explain
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!