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
pychu [463]
3 years ago
13

When 80​% of a number is added to the​ number, the result is 216.

Mathematics
2 answers:
son4ous [18]3 years ago
5 0
I believe that the answer is 120.

Using this formula:


<span>x+0.8x=216 1.8x=216 x=120</span>
Troyanec [42]3 years ago
3 0
The number you are looking for is 120 and you can easily calculate it by solving the following equation with respect to x
x+0.8 x = 216
You might be interested in
N the sequence generated by the formula an = n – 4, which term has a value of 8?
Mrrafil [7]

Answer:

The twelfth term :)

hope this helps

6 0
3 years ago
Read 2 more answers
Describe the steps to dividing imaginary numbers and complex numbers with two terms in the denominator?
zlopas [31]

Answer:

Let be a rational complex number of the form z = \frac{a + i\,b}{c + i\,d}, we proceed to show the procedure of resolution by algebraic means:

1) \frac{a + i\,b}{c + i\,d}   Given.

2) \frac{a + i\,b}{c + i\,d} \cdot 1 Modulative property.

3) \left(\frac{a+i\,b}{c + i\,d} \right)\cdot \left(\frac{c-i\,d}{c-i\,d} \right)   Existence of additive inverse/Definition of division.

4) \frac{(a+i\,b)\cdot (c - i\,d)}{(c+i\,d)\cdot (c - i\,d)}   \frac{x}{y}\cdot \frac{w}{z} = \frac{x\cdot w}{y\cdot z}  

5) \frac{a\cdot (c-i\,d) + (i\,b)\cdot (c-i\,d)}{c\cdot (c-i\,d)+(i\,d)\cdot (c-i\,d)}  Distributive and commutative properties.

6) \frac{a\cdot c + a\cdot (-i\,d) + (i\,b)\cdot c +(i\,b) \cdot (-i\,d)}{c^{2}-c\cdot (i\,d)+(i\,d)\cdot c+(i\,d)\cdot (-i\,d)} Distributive property.

7) \frac{a\cdot c +i\,(-a\cdot d) + i\,(b\cdot c) +(-i^{2})\cdot (b\cdot d)}{c^{2}+i\,(c\cdot d)+[-i\,(c\cdot d)] +(-i^{2})\cdot d^{2}} Definition of power/Associative and commutative properties/x\cdot (-y) = -x\cdot y/Definition of subtraction.

8) \frac{(a\cdot c + b\cdot d) +i\cdot (b\cdot c -a\cdot d)}{c^{2}+d^{2}} Definition of imaginary number/x\cdot (-y) = -x\cdot y/Definition of subtraction/Distributive, commutative, modulative and associative properties/Existence of additive inverse/Result.

Step-by-step explanation:

Let be a rational complex number of the form z = \frac{a + i\,b}{c + i\,d}, we proceed to show the procedure of resolution by algebraic means:

1) \frac{a + i\,b}{c + i\,d}   Given.

2) \frac{a + i\,b}{c + i\,d} \cdot 1 Modulative property.

3) \left(\frac{a+i\,b}{c + i\,d} \right)\cdot \left(\frac{c-i\,d}{c-i\,d} \right)   Existence of additive inverse/Definition of division.

4) \frac{(a+i\,b)\cdot (c - i\,d)}{(c+i\,d)\cdot (c - i\,d)}   \frac{x}{y}\cdot \frac{w}{z} = \frac{x\cdot w}{y\cdot z}  

5) \frac{a\cdot (c-i\,d) + (i\,b)\cdot (c-i\,d)}{c\cdot (c-i\,d)+(i\,d)\cdot (c-i\,d)}  Distributive and commutative properties.

6) \frac{a\cdot c + a\cdot (-i\,d) + (i\,b)\cdot c +(i\,b) \cdot (-i\,d)}{c^{2}-c\cdot (i\,d)+(i\,d)\cdot c+(i\,d)\cdot (-i\,d)} Distributive property.

7) \frac{a\cdot c +i\,(-a\cdot d) + i\,(b\cdot c) +(-i^{2})\cdot (b\cdot d)}{c^{2}+i\,(c\cdot d)+[-i\,(c\cdot d)] +(-i^{2})\cdot d^{2}} Definition of power/Associative and commutative properties/x\cdot (-y) = -x\cdot y/Definition of subtraction.

8) \frac{(a\cdot c + b\cdot d) +i\cdot (b\cdot c -a\cdot d)}{c^{2}+d^{2}} Definition of imaginary number/x\cdot (-y) = -x\cdot y/Definition of subtraction/Distributive, commutative, modulative and associative properties/Existence of additive inverse/Result.

3 0
2 years ago
This Measure of Center gives you the average number.<br><br> Mean<br> Median<br> Mode
Darina [25.2K]
I don’t understand this but:

The mean is the average of all the numbers combined

the median is the number centered directly in the middle with the same number of numbers on both sides of the number in the middle

The mode is how many times a number appears
3 0
3 years ago
Read 2 more answers
A truck is rented at $40 per day plus a charge per mile of use. The truck traveled 15 miles in one day, and the total charge was
lesantik [10]
15x+40=115
15x+40-40=115-40
15x=75
15/15 x=75/15
x= 5
6 0
3 years ago
The concession stand is selling hot dogs and hamburgers during a game. At
MAVERICK [17]

Answer:

44 hotdogs

30 hamburgers

Step-by-step explanation:

b r a i n and p a p e r

7 0
3 years ago
Other questions:
  • 13% of 400 is what number​
    7·1 answer
  • F(x)=-2|x|-3 find: f(-3) and find: -2f(x)<br><br><br> PLEASE HELP!
    9·1 answer
  • Solve for the following system of equations. -7x+6y=9 -2x-5y=16 x=? y=?
    7·2 answers
  • What statement makes the open sentence 49-7x=21 true?
    15·1 answer
  • 4. What is the measure of each interior angle of a regular 28-gon?
    10·1 answer
  • Veronica brought her turtle out of its aquarium for 15 minutes every night for 7 days how many total minutes did she bring her t
    10·1 answer
  • last year, marys vegetable garden was a rectangle that measured 6 ft by 8 ft. If she wants to increase the size this year by a s
    11·1 answer
  • Simplify the trigonomic expression 1/1+ sin
    6·2 answers
  • What is the domain of h(s)=<img src="https://tex.z-dn.net/?f=%5Csqrt%7Bs%5E%7B2%7D%20-%204%7D" id="TexFormula1" title="\sqrt{s^{
    6·1 answer
  • What is 7x7+89 i want to know what the b is to
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!