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
QveST [7]
3 years ago
5

What minus 9 equals 11

Mathematics
2 answers:
anastassius [24]3 years ago
7 0

Answer:

20

Step-by-step explanation:

Call the number you're trying to find  n.

"What" becomes  n.

n - 9 = 11

To "undo" the subtraction and reveal the value of  n ,  ADD 9 to both sides of the equation.  (Addition is the inverse operation of subtraction.)

n = 11 + 9 = 20

Naddika [18.5K]3 years ago
6 0

Answer:

20

Step-by-step explanation:

20 - 9 = 11

I hope this helps

You might be interested in
I need help. please answer.
lana66690 [7]

Answer:

B

Step-by-step explanation:

7 0
3 years ago
PLEASE I NEED HELP WITH MATH HW WITH EXPLANATION!!! <br> Question: Find the value of the varible
Marizza181 [45]
<h3>Answer:  w = 31</h3>

===================================================

Explanation:

For any triangle, the interior angles always add to 180

(angle1)+(angle2)+(angle3) = 180

(w) + (4w-6) + (w) = 180

(w+4w+w) - 6 = 180

6w - 6 = 180

6w - 6+6 = 180+6 .... adding 6 to both sides

6w = 186

6w/6 = 186/6 ..... divide both sides by 6

w = 31

------------------------------------

Extra info:

This value of w leads to

4w-6 = 4*31-6 = 118

The three angles of the triangle are: 31, 118, 31

Because we have two congruent angles, this means the triangle is isosceles. The sides opposite the congruent angles are the same length.

5 0
3 years ago
Addition and Subtraction of Rational
kvv77 [185]

Answer:

\frac{-1}{6}

Step-by-step explanation:

-\frac{5}{12}  + \frac{3}{12} = -\frac{2}{12}

-\frac{2}{12} = -\frac{1}{6}

which can also be written as:

\frac{-1}{6}

4 0
3 years ago
Let’s pretend that we want to give our employees in total a28% raise in the next two years, but we want to spread out aconsisten
Roman55 [17]

Solution

- The solution steps are given below:

\begin{gathered} \text{ Let the original amount be X} \\  \\ \text{ If we want a 28\% raise over the next two years, then it means that the amount will be:} \\ X+\frac{28}{100}X=1.28X \\  \\ \text{ If we want to give them a consistent raise each year, we can compute the scenario as follows:} \\ \text{ Let the percentage be }y \\  \\ X+y\%\text{ of }X=\text{ Salary after first year} \\  \\ (X+y\%\text{ of }X)+y\%\text{ of }(X+y\%\text{ of }X)\text{ = Salary after second year.} \\  \\ \text{ But we already know that the salary after second year is }1.28X \\ \text{ Thus, we can say:} \\ (X+y\%\text{ of }X)+y\%\text{ of }(X+y\%\text{ of }X)=1.28X \\  \\ \text{ Simplifying, we have:} \\ X+\frac{yX}{100}+\frac{y}{100}(X+\frac{yX}{100})=1.28X \\  \\ \text{ Divide through by }X \\ 1+\frac{y}{100}+\frac{y}{100}(1+\frac{y}{100})=1.28 \\  \\ \text{ Subtract 1 from both sides and expand the brackets} \\ \frac{y}{100}+\frac{y}{100}+(\frac{y}{100})^2=1.28-1=0.28 \\  \\ \frac{2y}{100}+(\frac{y}{100})^2=0.28 \\  \\ \text{ Multiply both sides by }100^2 \\ 200y+y^2=2800 \\  \\ \text{ Rewrite, we have:} \\ y^2+200y-2800=0 \\  \\ Solving\text{ the equation using the Quadratic formula, we have that:} \\ y=\frac{-200\pm\sqrt{200^2-4(-2800)}(1)}{2(1)} \\  \\ y=-213.137\text{   or   }13.137 \\  \\ \text{ Since the change in salary is an increase, thus, the rate }y\text{ has to be positive.} \\ \text{ Thus, } \\ y=13.137\approx13.14\% \\  \\  \end{gathered}

Final Answer

y = 13.14%

The screenshots of the solution are:

5 0
1 year ago
An enclosed gas exerts a pressure P on the walls of the container. this pressure is directly proportional to the temperature T o
Hitman42 [59]

Answer:

d. 60

Step-by-step explanation:

According to Gay Lussac's Law

P1/T1=P2/T2  where

P1= Pressure at the start, T1 = initial Temperature

, P2= Final Pressure, T2 =Final Temperature

T1=P1*T2/P2= 7*420/49=60

6 0
3 years ago
Other questions:
  • Deathvalley has an elevation of -282 feet to sea level explain how to use absolute value to describe the elevation of death vall
    9·1 answer
  • Please please help me out!!
    10·2 answers
  • Can you please tell me the answers to all of these
    11·1 answer
  • the height of a parallelogram is 18 centimeters less than its base. if the area is 175 square centimeters, what is its height?
    7·1 answer
  • Evaluate the expression
    10·2 answers
  • What expression is equivalent to 9^-2
    6·2 answers
  • Hi I'm a girl and if anyone need help come to me cause I'm here and I know every thing and I'm nice:)
    6·2 answers
  • Cylinder a has a mass of 3 kg and cylinder b has a mass of 8 kg. Determine the speed of a after it has moved 2 m starting from r
    15·1 answer
  • Let’s work with some actual data this time. Go online to research and find a set of real-world data in two variables. The data c
    8·1 answer
  • Find a formula for the nth term in this
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!