All categories

3 years ago

What minus 9 equals 11

Mathematics

2 answers:

anastassius [24]3 years ago

7 0

Answer:

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:

Step-by-step explanation:

20 - 9 = 11

I hope this helps

You might be interested in

Question 2: Please help I do not understand this question.

Svetradugi [14.3K]

The measurement of AB is 16.23.

Solution:

Given ACB is a right angled triangle.

AC = 10, ∠C = 90° and ∠A = 52°.

cos θ ≈ 0.616

Here AC is the base and AB is Hypotenuse.

To find the length of AB:

$$\cos\theta=\frac{\text{Base}}{\text{Hypotenuse}}$

$$\cos 52^\circ=\frac{10}{AB}$

$$0.616=\frac{10}{AB}$

Do cross multiplication, we get

$$AB=\frac{10}{0.616}$

AB = 16.23

Hence the measurement of AB is 16.23.

5 0

3 years ago

The equation below shows the total volume (V), in cubic units, of 7 identical boxes with each side equal to s units: V = 7s3 If

Dafna1 [17]

If v=7s3. s=2.3
v=7*3*2.3=48.3
if v=7s^3. s=2.3
v=7*(2.3*2.3*2.3)=85.169

7 0

3 years ago

a circle with radius of 2cm sits inside a 7cm x 11cm rectangle. what is the area of the shaded region ?

Agata [3.3K]

Answer:

The area of the shaded region is $(77-4\pi)\ cm^{2}$

Step-by-step explanation:

we know that

The area of the shaded region is equal to the area of the rectangle minus the area of the circle

step 1

Find the area of the rectangle

$A=(7)(11)=77\ cm^{2}$

step 2

Fin the area of the circle

$A=\pi (2)^{2}=4\pi \ cm^{2}$

step 3

Find the area of the shaded region

$77\ cm^{2}-4\pi \ cm^{2}=(77-4\pi)\ cm^{2}$ -----> exact value

To find the approximate value use $\pi=3.14$

$(77-4(3.14))=64.44\ cm^{2}$ -----> approximate value

7 0

3 years ago

Find the consecutive integers even integers whose sum is 264

coldgirl [10]

Name the first even integer you are looking for $x$ . The next even number is $x+2$ .

Their sum is $264$ , so $x+x+2=264$ . That means $2x=262$ , hence $x=131$ .

So, the desired numbers are $131$ and $133$ .

5 0

4 years ago

The graph below shows a line segment XY: graph of line segment XY with endpoints at negative 1 comma 3 and 1 comma negative 1 Wh

yan [13]

Slope = (y2 - y1) / (x2 - x1)
(-1,3)....x1 = -1 and y1 = 3
(1,-1) ...x2 = 1 and y2 = -1
now we sub
slope = (-1 - 3) / (1 - (-1) = -4/2 = -1/2 <==

7 0

3 years ago

Read 2 more answers