Simplify

45 - (31 - 9)

Answers

Answer 1

Answer:

23

Step-by-step explanation:

you always do whatever is in the brackets first,

31 - 9 = 22

then the equation would be,

45 - 22

so the answer is 23

hope this helped xx

Answer 2
Pemdas states that the equation in parenthesis comes first. With that in mind, let’s solve:

31 - 9 = 22

Now that we have solved, we can properly subtract 22 from our other number, 45:

45 - 22 = 23

45 - (31 - 9) = 23.

Related Questions

the ratio of impressionists to fauvists was 13 to 4. if there were 104 impressionists how many fauvists were there

Answers

Therefore , the solution of the given problem of ratio comes out to be

there are 32 fauvists .

what is ratio?

Ratios show how often one number is contained in another in mathematics. For instance, the ratio of oranges to lemons in a fruit dish is 8 to 6 if there are 8 oranges and 6 lemons present. In a similar vein, the proportion of oranges to whole fruit is 8, while that of lemons to oranges is 6:8. A ratio is an ordered pair of numbers a and b that is expressed as a / b, with b not equal to zero. An equation equating two ratios is known as a ratio. The ratio can be expressed as 1:3, for instance, if there is 1 boy and 3 girls (for every boy she has 3 girls) 3/4 are girls, while 1/4 are boys.

Here,

Given :

the ratio is 13:4

and there were 104 impressionists

Let x be the fauvisits

=> 13:4 = 104/x

=>  13 /4  = 104/x

=> x = 104 *4 /13

= >x  = 32

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Please help, im so lost

Please help, im so lost

Answers

Answer:

The Angle is AABC

they met at =46

mSBV= 18
mSAU= 92
SV=22

oki i need help with this problems! it doesn't matter if you do it for me or help me (please help I need this due tomorrow and its like 9:00) thank you so much!! ill show you! like in the text box thingy​

oki i need help with this problems! it doesn't matter if you do it for me or help me (please help I need

Answers

Answer:

Here:

Step-by-step explanation:

You choose 2,4,6,8,10 as your solution points, or in other words the numbers you with substitute in for x.

The equation is:

y= 1/2x+1

So what we would do is take one number from the list above (2,4,6,8.10) and put it in for are.

So, Thats how you do it, I attached a completed version of your paper below!

oki i need help with this problems! it doesn't matter if you do it for me or help me (please help I need

Carla has a rectangular garden in her backyard. The width of the garden is 9 meters. The area of the garden is 360 square meters. What is the length of the garden? Show your work.​

Answers

Answer:

l = 40 m

Step-by-step explanation:

The formula for area of a rectangle is

A = lw, where

A is the area in square units,l is the length,and w is the width

Step 1:  Since we're given the area and width, we plug in these two values for A and w and to solve for l (length):

360 = 9l

Step 2:  Divide both sides by 9 to solve for l

(360 = 9l) / 9

40 m = l

Optional Step 3:  We can check our answers by checking that the product of 40 and 9 is 360

40 * 9 = 360

360 = 360

Find the surface

Record the answer only

Find the surface Record the answer only

Answers

Answer:

150 is the answer

Step-by-step explanation:

5) Alex's house (point F) lies on the same street as her school (point H). Alex's bus stop (point G) lies between her
house and her school. Given FG equals (2x) meters, GH = 1,000 meters, and FH equals 1.200 meters, what is z?
Answer:​

Answers

Answer:

100 meters

Step-by-step explanation:

Given the following :

Alex house = F

Alex school = H

Alex bus stop = G

FG = 2x meters

GH = 1000meters

FH = 1200 meters

Hence,

FH = FG + GH

1200 = (2x + 1000) meters

1200 = 2x + 1000

1200 - 1000 = 2x

200 = 2x

x = 100meters

Hence, x = 100 meters

5) Alex's house (point F) lies on the same street as her school (point H). Alex's bus stop (point G)

what is the ratio of 2500 was divided among 3 persons​

Answers

Answer:

if 2500 is divided into 3 people it would be 833.33 person what you mean by the question sir

Very confused on how to get the inside variables

Very confused on how to get the inside variables

Answers

Yes bsbsjwjwjsbshsueu

A new brand of gym shoe claims to add up to 2 inches to an athlete’s vertical leaps. Design an experiment to test this claim.

Describe a sample procedure.

A) Find the average vertical leap of all the athletes in their regular shoes. Give the control group the new shoes and the experimental group a different pair of shoes. Find the average vertical leap of the athletes in both groups. Compare the increases in vertical leap for each group.

B) Find the average vertical leap of all the athletes in their regular shoes. Give the experimental group the new shoes and the control group a different pair of shoes. Find the average vertical leap of the athletes in both groups. Compare the increases in vertical leap for each group.

C) Find the average vertical leap of a group of athletes in their regular shoes. Then give them each the new shoes and find their average vertical leap. Compare the before and after results.

Answers

Answer:

The correct option is (B).

Step-by-step explanation:

In this case, we need to test whether the claim made by the new brand of gym shoe is correct or not.

Claim: A new brand of gym shoe claims to add up to 2 inches to an athlete’s vertical leaps.

So, we need to test whether the average vertical leap of all the athletes increased by 2 inches or not after using the new brand of gym shoe.

The sample procedure would be to compute the average vertical leap of a group of athletes in their regular shoes (or a different pair) and the average vertical leap of a group of athletes in their new shoes.

Compare the two averages to see whether the difference is 2 inches or not.

The experimental group would be the one with the new shoes and the control group would be the one with the different pair of shoes.

Thus, the correct option is (B).

Answer:

B) Find the average vertical leap of all the athletes in their regular shoes. Give the experimental group the new shoes and the control group a different pair of shoes. Find the average vertical leap of the athletes in both groups. Compare the increases in vertical leap for each group.

Step-by-step explanation:

Solve analytically Laplace's equation Au=0 in the square [0, 1]²2 with boundary conditions u(x,0) = 0 = u(0, y), u(x, 1) = u(1, y) = 1.

Answers

The Laplace equation is defined as Au=0. The aim is to solve analytically Laplace's equation in the square [0, 1]²2 with boundary conditions u(x,0) = 0 = u(0, y), u(x, 1) = u(1, y) = 1.

Let's consider the Laplace equation as followsAu = ∂²u/∂x² + ∂²u/∂y²= 0Given boundary conditions areu(x, 0) = 0u(0, y) = 0u(x, 1) = u(1, y) = 1The solution of the Laplace equation is as followsu(x,y) = X(x).Y(y)Let's find the boundary conditionsu(x, 0) = 0

Let's substitute the value of Y(0) in the solution to get X(x).Y(0) = 0, which implies Y(0) = 0Similarly, u(0, y) = 0 => X(0).Y(y) = 0 => X(0) = 0Now, let's find the remaining boundary conditionsu(x, 1) = 1X(x).Y(1) = 1 => Y(1) = 1/X(x)u(1, y) = 1 => X(1).Y(y) = 1 => X(1) = 1/Y(y)Now, let's put the values of X(0) and X(1) in the below equationX(0) = 0, X(1) = 1/Y(y)X(x) = x

Now, let's put the values of Y(0) and Y(1) in the below equationY(0) = 0, Y(1) = 1/X(x)Y(y) = sin(n.π.y) /sinh(n.π)Therefore, the solution of Laplace's equation u(x, y) is as follows;u(x,y) = Σ(n=1 to ∞)sin(n.π.y).sinh(n.π.x) /sinh(n.π)Answer:Therefore, the solution of Laplace's equation u(x, y) is u(x,y) = Σ(n=1 to ∞)sin(n.π.y).sinh(n.π.x) /sinh(n.π).

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mohamed plays a game where he draws one card from a well-shuffled standard deck of 52 cards. he wins the game if the card he draws is a king or a red card. are the two events mutually exclusive? the two events are mutually exclusive. there is not enough information to determine if the two events are mutually exclusive. the two events are not mutually exclusive. what is the probability that mohamed wins the game? what is the probability that mohamed loses the game?

Answers

Probability of Mohamed winning the game = 50%

Probability of Mohamed losing the game = 50%

The two events are not mutually exclusive because there are 2 red kings in the deck. The probability that Mohamed wins the game is 18/52 or 9/26. The probability that Mohamed loses the game is 34/52 or 17/26.What is the probability that Mohamed wins the game? Mohamed wins the game if he draws a king or a red card. There are 2 red kings in the deck and 24 other red cards (not counting the kings), so there are 26 cards in the deck that would give Mohamed a win. The probability of Mohamed winning the game is:P(win) = number of winning outcomes / total number of possible outcomes= 26 / 52= 1 / 2= 0.5= 50%. What is the probability that Mohamed loses the game?Since there are 26 cards that would give Mohamed a win, there are 52 - 26 = 26 cards that would give Mohamed a loss. The probability of Mohamed losing the game is:P(loss) = number of losing outcomes / total number of possible outcomes= 26 / 52= 1 / 2= 0.5= 50%

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Someone help pls. hurry​

Someone help pls. hurry

Answers

Answer:

slope = -1/4 intercept = 50

Step-by-step explanation:

Ethan is watering his plants. He starts with a watering can filled with 32 ounces of water, and he pours 3.5 ounces onto each plant. When Ethan finishes watering his plants, he has 14.5 ounces of water left. How many plants does he have? Write and solve an equation to find the answer.

Answers

The number of plants Ethan has are 5.

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

Let x be the number of plants Ethan has.

Ethan uses 3.5 ounces of water for each plant, so he will use a total of 3.5p ounces of water.

If he starts with 32 ounces of water and ends up with 14.5 ounces

Total of 32 - 14.5 = 17.5 ounces of water.

As given the amount of water used is equal to the amount of water per plant times the number of plants:

3.5x = 17.5

Divide both sides by 3.5

x=5

Hence, , Ethan has 5 plants.

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PLEASE HELP 20−(2)(−7)+(−9)÷(−3)

Answers

Answer:

37

Step-by-step explanation:

Use PEMDAS, in this case, start with multiplication: (2)(-7), don't forget there is a minus sign in front of the two which is important later, then move on to dividing (-9) by (-3). Then you are left with 20-(-14)+3, which is the same as 20+14+3, which equals 37.

Identify any outliers of the data set. Then determine the effect that the outlier has on the mean.


375, 350, 400, 375, 375, 425, 350, 125, 400


I swear I get so confused with these-

Answers

Answer:

125 is an outlier

125 changes the mean by 23 points (from 375 to 352)

Step-by-step explanation:

an outlier is 1.5 times the IQR

the InterQuartile Range of this set of data is 400-350 or 50

50 x 1.5 = 75

the only data value that is 75 points from the IQR is 125

HELP ME LOOK A PICTURE

HELP ME LOOK A PICTURE

Answers

Answer:

2.5 or 0.4

Step-by-step explanation:

Because if you do

10 divided by 4 then it would be 2.5

4 divided by 10 then it would be 0.4

So it could be either one.

How many of the 320 million Americans would you predict wear glasses?Using table 2​

How many of the 320 million Americans would you predict wear glasses?Using table 2

Answers

Step-by-step explanation:

Divide your 320 million with 618 and that's your answer.

Answer:

517799

Step-by-step explanation:

A sidewalk sale, and she sold 3/4 of it at the sale. After the sale, she gave 3/2 gallons of the remaining lemonade to her cousins. If Tiana had 7/8 of a gallon left after the sale and giving some to her cousins, how much lemonade, in gallons, did she start with?

Answers

Tiana started with 14 gallons of lemonade.

We are given that Tiana sold 3/4 of her lemonade during the sidewalk sale and then gave 3/2 gallons to her cousins. After these transactions, she had 7/8 of a gallon left.

Let's calculate the total amount of lemonade Tiana started with. We know that 7/8 of a gallon represents (1 - 3/4) of the remaining lemonade after the sale. Therefore, we can set up the equation (1 - 3/4) * x = 7/8, where x represents the initial amount of lemonade Tiana had.

Simplifying the equation, we have (1/4) * x = 7/8. Multiplying both sides by 4, we get x = 28/8 = 14/4 = 14.

Hence, Tiana started with 14 gallons of lemonade.

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Liz dives 10 feet below the surface of the water. Then she returns to the surface. Use the drop-down menus to write an expression that represents her overall change in depth.

Liz dives 10 feet below the surface of the water. Then she returns to the surface. Use the drop-down

Answers

Explanation

let the surface of the water

A person is standing 1 foot below sea level. Which integer would best represent that elevation on a number line? –2 -1 1 0

Answers

Answer:

-1 feet

Step-by-step explanation:

below means that your answer will be a negative because sea level is at 0 how many feet below 1 so your answer is -1

Does anyone know the answer???

Does anyone know the answer???

Answers

Answer:

That's the right answer

Step-by-step explanation:

Hope to help

mark me as brainlinest plss

Does anyone know the answer???

Please help me with this answer

Please help me with this answer

Answers

Answer:

here

x=2 then,

3*2^2 - 2*2+1

3*4-4+1

12-4+1

9

Step-by-step explanation:

Simplify:

3x^2 - 2x + 1

=> 3(2)^2 - 2(2) + 1 [ x = 2 (Given)]

=> 3(4) - 2(2) + 1

=> 12 - 4 + 1

=> 13 - 4

=> 9 Ans.

what is 28.5 inches in height?

Answers

two feet and 4.5 inches

What is the maximum number of solutions each of the following systems could have?
Two distinct concentric circles
Two distinct parabolas:
A line and a circle:
A parabola and a cicle

Answers

Answer:

-zero

-two

-two

-four

Step-by-step explanation:

edge. answers

Answer:

Above is correct

Step-by-step explanation:

(Question 8)
State The Slope

(Question 8)State The Slope

Answers

The slope of the line in the given graph is 0.5

Calculating the slope of a line

From the question, we are to calculate the slope of the line in the given graph

To calculate the slope, we will pick two points on the line shown in the graph

Picking the points (1, 1) and (3, 2).

Using the formula,

Slope = (y₂ - y₁) / (x₂ - x₁)

Slope = (2 - 1) / (3 - 1)

Simplify the expression on the right side

Slope = 1 / 2

Slope = 0.5

Hence,

The slope of the line is 0.5

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need help please this is plato recovery

need help please this is plato recovery

Answers

\(3\leqslant |x+2|\leqslant 6\implies \begin{cases} 3\leqslant |x+2|\\\\ |x+2|\leqslant 6 \end{cases}\implies \begin{cases} 3 \leqslant \pm (x+2)\\\\ \pm(x+2)\leqslant 6 \end{cases} \\\\[-0.35em] ~\dotfill\)

\(3\leqslant +(x+2)\implies \boxed{3\leqslant x+2}\implies 1\leqslant x \\\\[-0.35em] ~\dotfill\\\\ 3\leqslant -(x+2)\implies \boxed{-3\geqslant x+2}\implies -5\geqslant x \\\\[-0.35em] ~\dotfill\\\\ +(x+2)\leqslant 6\implies \boxed{x+2\leqslant 6}\implies x\leqslant 4 \\\\[-0.35em] ~\dotfill\\\\ -(x+2)\leqslant 6\implies \boxed{x+2\geqslant -6}\implies x\geqslant -8\)

do you use multiplication at all when solving for x

Answers

depends on the question. but yes

A video rental store charges a $20 membership fee and $2.50 for each video
rented. Write an equation in slope-intercept form to model this situation.

Answers

Answer:

20 + 2.50v

Step-by-step explanation:

I will use the variable "v" as the unkown number of videos.

$20 + $2.50v

20 + 2.50v

Where 20 is the charged amount for a membership fee and 2.50 as the cost for every video and "v" as the unknown number of videos bought.

Pls consider marking me as Brainliest! It would mean a lot!

Can someone help me????? ​

Can someone help me?????

Answers

\(\dfrac{9x^2}{y^2} -3x = 5 w\\\\\implies 9x^2 - 3x y^2 = 5wy^2 ~~~;[\text{Multiply both sides by}~ y^2]\\\\\implies 5wy^2 + 3xy^2 = 9x^2\\\\\implies y^2(5w +3x) = 9x^2\\\\\implies y^2 = \dfrac{9x^2}{5w +3x}\\\\\\\implies y = \pm \sqrt{\dfrac{9x^2}{5w +3x}} = \pm\dfrac{3x}{\sqrt{5w +3x}}\)

(The answer I put is the wrong answer)

(The answer I put is the wrong answer)

Answers

Answer:

Step-by-step explanation:

Volume = πr²h/3 = πr²9/3 = 3πr²

3πr² = 3πy² + 30πy + 75π

r² = y² + 10y + 25

r² = (y+5)²

r = y+5

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