Mathematics High School

Which of the following is true about the order of operations?
1. Multiplication comes before division.
2. Addition and subtraction are done from left to right.
3. Addition and subtraction are done before multiplication and division.
4. Exponents are the first operation to be completed.

Answers

Answer 1

Answer:

2

Step-by-step explanation:

Answer 2

Multiplication comes before division. To add or subtract we can do from left to right by thousand, hundred, or any respective place value thus options (1) and  (2) are correct.

What is the arithmetic operator?

Arithmetic operators are four basic mathematical operations in which summation, subtraction, division, and multiplication involve.,

Summation = addition of two or more numbers or variable

Subtraction = Minus of any two or more numbers with each other called subtraction.

Using the PEMDAS rule,

Parenthesis = 1st

Exponents = 2nd

Multiplication = 3rd

Divide = 4th

Addition = 5th

Subtraction = 6th

Suppose an addition,

120 + 320

Now add from left to right,

100 + 300 = 400

20 + 20 = 40

Now, 400 + 40 = 440

Thus, adding from left to right is true.

Hence "Multiplication comes before division. To add or subtract we can do from left to right by thousand, hundred, or any respective place value ".

To learn more about the arithmetic operators,

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Related Questions

2x-6у =4 help I don’t know

Answers

Y=-2/3 + x/3......................

Mike saves $2,000 at a yearly simple interest rate of 2%. He earns $280 in interest. For how many years did he save this money?

Answers

Answer:

7 years.

Step-by-step explanation:

To find this, we need to find 2% of 2,000. To do this, we mulitply 2,000 by .02. This gets us 40. Now, we need to divide 280 by 40 to find the amount of years it took for Mike to get this money. When we do that, it gets us 7. That means Mike saved that money for 7 years.

The number of years that he saves this money will be 7 years.

What is simple interest?

Simple interest is the concept that is used in many companies such as banking, finance, automobile, and so on.

The formula for interest is written as,

I = (PRT)/100

Where P is the principal, R is the rate of interest, and T is the time.

Mike saves $2,000 at a yearly simple interest rate of 2%. He earns $280 in interest. Then the number of years is calculated as,

$280 = ($2,000 x 2 x T) / 100

$28,000 = $4,000 x T

T = $28,000 / $4,000

T = 7 years

The number of years that he saves this money will be 7 years.

More about the simple interest link is given below.

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Need help asap!


what is the value of x and y?
2x+3=y​

Answers

Answer: `y`-value is double the `x`-value plus `3` will make the hanger balance.

So x can be 3 and y can be 9

6's + 2) = 18

S+2=
S=

Answers

Answer:

s+2=3

s=1

Step-by-step explanation:

make it braintliest please

Write an equation of the line that passes through (0,-5) and is perpendicular to the line y=4/5x.

Answers

Answer:

y = -5/4x - 5

Step-by-step explanation:

Select the equation that represents the graph above.


y=x√−2y is equal to square root of x minus 2 , ,


y=x√+2y is equal to square root of x plus 2 , ,


y=x+2y is equal to x plus 2 , ,


y=x+2−−−−−√

Answers

Answer:

                                                          _

just did the test and got it right its /x + 2

Step-by-step explanation:

just did the test i cant make the simble though but the right answer is the one where the line is only above the x oh wait actually i see your questions know my delete key broke soooo its the 2nd option

Dario increased his savings from $350 to $413 . What is darios percent increase in savings ?

Answers

Answer:

18%

Step-by-step explanation:

413-350=63%

63%/350=18%

What is the perimeter of a rectangle that
is 5 inches by 3 inches?

Answers

Answer:16

Step-by-step explanation:

It’s 16 because a rectangle has 4 sides and 2 of them are 5 and another 2 sides are 3 so 5 + 5 + 3 + 3 = 16

Could someone pls help me and explain this if you know it!!

Answers

Answer:

25% on question one

Step-by-step explanation:

For example, on question one, 5 students drink more than half a dozen sodas a week. If there is a total of 20 students you'd divide 5 by 20 and that should be the answer.

If a rectangle piece of dimensions 3 cm x 2 cm is cut from one corner of a rectangular sheet of dimensions 10 cm x 6 cm and attached to it's side projecting out of the rectangle, what will be the change in perimeter of the new shape thus formed?

Answers

Answer:

[tex]6\ \text{cm}[/tex]

Step-by-step explanation:

The sides of the larger rectangle are 10 cm and 6 cm.

The sides of the part cut out are 3 cm and 2 cm.

The part cut out is attached to one of the sides of the rectangle.

Perimeter of the new shape will be

[tex]6+7+2+3+2+3+2+13=38\ \text{cm}[/tex]

Perimeter of old shape

[tex]2(10+6)=32\ \text{cm}[/tex]

Change in the perimeter is [tex]38-32=6\ \text{cm}[/tex]

The perimeter of changed by [tex]6\ \text{cm}[/tex].

16) Ken earned $128 from his part-time job this summer. He spent 25% of his money on games. He
is going to donate 1/6 of the remaining money to charity. How much will the charity receive?
OA) $15
OB) $16
OC $32
OD) $80

Answers

Answer:

B) $16

Step-by-step explanation

Which letter is in the solution set for graph #2

Answers

Answer:

A

Step-by-step explanation:

y > 0 - the region above the line together with that line

y ≥ 0 - the region above the line together with that line

y < 0 - the region below the line without that line

y ≤ 0 - the region below the line together with that line

We have:

y > 2 - the region above the line together with that line

y ≥ 2x - 3 - the region above the line together with that line

look at the picture

The common part is the solution.

If abx-5=0 what is x in terms of a and b?
My answers: A. x=5/ab B. x=-5/ab C. x=5-ab D. x=ab-5

Please help... Thanks :)

Answers

Answer:

A. x=5/ab

Step-by-step explanation:

abx - 5 = 0

x = 5 ÷ ab

Factor the trinomial: 5x^2 + 33x + 18​

Answers

Answer:

here you go

Step-by-step explanation:

Simplifying

5x2 + 33x + 18 = 0

Reorder the terms:

18 + 33x + 5x2 = 0

Solving

18 + 33x + 5x2 = 0

Solving for variable 'x'.

Factor a trinomial.

(6 + x)(3 + 5x) = 0

What is the slope of the function below?
y=3x+5 please help!!!

Answers

X=-5/3 it’s a fraction

8,-1,-5,2? Which one!.............

Answers

Answer: I would say -8,-1

Step-by-step explanation:

163-x=-52 equals what as the answer

Answers

Answer:

215=x

Step-by-step explanation:

Answer

x=215

Step-by-step explanation:

What is the value of 3/5÷9/2

Answers

Answer:

1/30

(Decimal: 0.033333)

Step-by-step explanation:

Answer:

2/15

Step-by-step explanation:

Hope this helps!

someone please help me ​

Answers

Answer:

(X,Y)=(1,-4)

Step-by-step explanation:

helpppppppppppppppppppppppppppppppppppppppppppp PLEASE

Answers

Answer:

x = 7/12

Step-by-step explanation:

20 = 15(x + 3/4) (Given)

20 = 15x + 45/4 (Distribute)

35/4 = 15x (Subtract 45/4 on both sides)

7/12 = x (Divide 15 on both sides)

You can substitute the solution for x to check.

20 = 15(7/12 + 3/4)

20 = 15(4/3)

20 = 20

Yesterday, there were 40 problems assigned for math homework. Gavin got 28 out of 40 problems correct. What percentage did Gavin get correct?

Write your answer using a percent sign (%).

Answers

He has 70% of his questions correct.

This is why because 28/40 simplified is 7/10 and I know this is by dividing each number by 4. Also 7/10 and 0.7= 70%

Answer:

70%

Step-by-step explanation:

I'm pretty sure its 70 because write it as a fraction 28/40 when divide them both and you get 0.7 which is 70. I hope that works

3(8 - x) = 7x - 6
Can someone explain how to get the answer please

Answers

Answer:

x=3

Step-by-step explanation:

The steps are in the picture below.

Express in the form n : 1
9:3​

Answers

Answer:

n =3

hope it helps

Answer:

3:1

Step-by-step explanation:

cut by 3

..............

Find the length and width of a rectangle.
Perimeter = 50
Side A = 3x + 2
Side B = x - 5

Answers

Step-by-step explanation:

Perimeter = 2 * (Side A + Side B)

= 2 * (3x + 2 + x - 5)

= 2 * (4x - 3)

= 8x - 6.

We have 8x - 6 = 50, so 8x = 56 and x = 7.

Length of rectangle = 3(7) + 2 = 23.

Width of rectangle = (7) - 5 = 2.

Answer:

Length of rectangle = 3(7) + 2 = 23.

Width of rectangle = (7) - 5 = 2.

Step-by-step explanation:

What is the mean of the set {4, 6, 8, 10}?

Answers

Answer:

Step-by-step explanation:

8 I think

Answer:

Defination:

.the collection of distinct elements or members.

Step-by-step explanation:

A number n is no more than 8.

Answers

Answer:

n<8

Step-by-step explanation:

Answer: N < 8

Step-by-step explanation:

Solve the inequality.
-4(2n-6)

Answers

Answer: -8n + 24

Step-by-step explanation:

-4(2n-6)

-8n + 24

Answer:-8n+24

Step-by-step explanation:

help me
Multiply 90 lb times 0.45 kg = ? kg

Answers

Answer:

40.5

Step-by-step explanation:

Rewrite the equation in slope intercept form
3y - 8x = -9

Answers

Answer:

y = (8/3)x - 3

Step-by-step explanation:

To get to slope intercept, just solve for y

3y - 8x = -9

3y = -9 + 8x

y = (-9 + 8x)/3

y = -9/3 + 8x/3  (distribute the 3 so we can reach the right form)

y = -3 + 8/3(x)

finally write in slope intercept form:

y = (8/3)x - 3

5. How much power is dissipated when 0.2 ampere of current flows through a 100-ohm resistor ?​

Answers

Answer:

4 W

Step-by-step explanation:

Electrical power, P = I²R where I = current and R = resistance.

Given that I = 0.2 A and R = 100 Ω,

P = I²R

P = (0.2 A)² × 100 Ω

P = 0.04 A² × 100 Ω

P = 4 W

Other Questions
An SAT prep course claims to improve the test score of students. The table below shows the scores for seven students the first two times they took the verbal SAT. Before taking the SAT for the second time, each student took a course to try to improve his or her verbal SAT scores. Do these results support the claim that the SAT prep course improves the students' verbal SAT scores?Let d=(verbal SAT scores prior to taking the prep course)(verbal SAT scores after taking the prep course)d=(verbal SAT scores prior to taking the prep course)(verbal SAT scores after taking the prep course). Use a significance level of =0.1 for the test. Assume that the verbal SAT scores are normally distributed for the population of students both before and after taking the SAT prep course.Student 1 2 3 4 5 6 7Score on first SAT 500 380 560 430 450 360 560Score on second SAT 540 470 580 450 480 400 600Required:a. State the null and alternative hypotheses for the test.b. Find the value of the standard deviation of the paired differences. Round your answer to one decimal place.c. Compute the value of the test statistic. Round your answer to three decimal places.d. Determine the decision rule for rejecting the null hypothesis. Round the numerical portion of your answer to three decimal places.e. Make the decision for the hypothesis test. 3.75x-5-8.75X+4.5+0.5 If anyone has read Fahrenheit 451, I need to write a summary about pages 21-29. Can anyone help me with it?? Why did 19th century reformers want to see an end to public executions? (-3, -7). 1/7 what is the equation in point slope form Which solution shown below contains an error?343x43x+4? 1+22x+21x+1+223+21-128x+8(x+1)(x-6) * (x+1)(x-6)+1- 81px-4(+1)(-6) 2. During a game, which of the following would be an example of good sportsmanship?A. Breaking the rules of the game in order to win.B. Following the rules and playing fairly.C. Yelling at your opponents while they are playing.D. Laughing if one of your opponents makes a mistake. which describes a function of the thalamus? 14 x 18. How do you do distributive property? for what value of x is d parallel to e? A) 20B) 25C) 35D) 37 what is a good example of continentality in europe? I was stunned. A call-up: everyone knows what that means. Visions of concentration camps and lonely cells raced through my head. How could we let Father go to such a fate?Which word best describes the mood of this excerpt?isolationfearangerconfusion how do i find an equation for a line with an x-intercept of 4 and a y-intercept of -2 Johannes Brahms, a Germancomposer and pianist, went tobecause it was the center of the artsat that time.A. Vienna, AustriaB. Dublin, IrelandC. Lisbon, Portugal what does the word temporarily mean on page 1 of the passage err i dont know U>U here you go peeps The pigment plants have that they use for photosynthesis is called I dont want a explanation I just want the answer What is 1/4 times 24.80 mg(oh)2How many H atoms are there?How many Mg?What is the total number of atoms? Answer all questions and the topic is about ordering decimals and don't answer if u do not know.