Joe and Susan were arguing about how
many basic operations existed in math. Joe
argued that there are only 4 operations (addition,
subtraction, multiplication, and division). Susan
disagreed and said there are only 2 operations.
She made a case that when you subtract its just
adding a negative and when you divide its
multiplying by a fraction. Do you agree with
Susan? What is your opinion on this matter?

Answers

Answer 1

Answer:

The correct number of basic operations that exist in mathematics is four (addition, subtraction, multiplication and division) because the definition of an operation is the carrying out of a task by the application of principles and these four operation are arithmetic operations that have precedence rules or order of operations, such that we must first multiply or divide before adding or subtracting

Division is different from simply multiplying by a fraction because in Euclidean division, the result is a quotient and a remainder, which shows that division can yield more than one result while multiplication yields a single result

For subtraction and addition, one of the differences is that subtraction cannot be simply commuted

a - b = -(b - a)

Subtraction is non-associative;

a - b - c when arranged as (a - b) - c and a - (b - c), can yield different results depending on operation order which is unlike addition

Therefore, the four basic operations in mathematics are addition, subtraction, multiplication and division

Step-by-step explanation:


Related Questions

Plz help!!! It is 2.389 x 10 miles to the moon from the Earth. How many miles will it be if you go to the moon and
back two times? Write your answer in scientific not

Answers

Answer:

47.78

Step-by-step explanation: 2.389 times 10 = 23.89 x 2 = 47.78

Which describes how a person most likely uses latitude and longitude lines? ​

Answers

A person most likely uses latitude and longitude lines to find an ocean or somewhere they are looking for
a person uses longitude and latitude likes in architecture.

What formulae can be used to solve quadratic equation in two variables?​

Answers

The formula that could be used ax*2 + bx + c = 0

From the top of a tree 20 metres high,the angle of depression at a point on the opposite bank of a river is found to be 30° .Find the breadth of the river.

Answers

Answer:

17.3

Step-by-step explanation:

sin(30)=0.5

0.5*20=100

20*20+x*x=100

x=17.3

A city park is opening a new swimming pool. You can pay a daily entrance fee of $3 or purchase a membership for the 12 week summer season for $82 dollars and pay only $1 per day to swim. How many days would you have to swim to make the membership worthwhile?

Answers

Answer:

41 days

Step-by-step explanation:

The membership would be worthwile if you swim an amount of days paying the daily entrance fee that would make your total cost equal to the cost of the membership. From that you can write the following expression:

3x=82+(1*x), x is the number of days you go to swim

Now, you can solve for x:

3x=82+x

3x-x=82

2x=82

x=82/2

x=41

According to this, the answer is that you would have to swim 41 days to make the membership worthwile.

Find the value of the following problems (a) 5 cube 3

Answers

Answer:

125

Step-by-step explanation:

5^3 = 5 × 5 × 5 = 125

A family wants to purchase a house that costs $185,000 . They plan to take out a $135,000 mortgage on the house and put $50,000 as a down payment. The bank informs them that with a 15-year mortgage their monthly payment would be $925.14 and with a 30-year mortgage their monthly payment would be $615.65 . Determine the amount they would save on the cost of the house if they selected the 15-year mortgage rather than the 30-year mortgage. Savings = $

Answers

Answer:

4,592.4

Step-by-step explanation:

925.14×15 = 13,877.1

615.65x30=18,469.5

18,469.5

- 13,877.1

= 4,592.4

Answer:

$55,108.80

Step-by-step explanation:

15 year mortgage

925.14/month times 180 months =

$166,525.20

30 year mortgage

615.65/month times 360 months =

$221,634

$221,634 - $166,525.20 =

$55,108.80

So the difference between the 15 year mortgage and the 30 year mortgage is $55,108.80

write the degree of polynomials how do you find the degree?

Answers

Answer:

5 or 3 will be the answer

The definition of a degree is the highest exponent of a term with a non-zero coefficient.

What is the exponent for the term [tex]8x^2[/tex]? 2

What is the exponent for the term [tex]13y^3[/tex]? 3

Since 3 is greater than 2, the degree of the polynomial is 3.

Hope this helps.

頑張って!

Solve for a.
q+a= b


Solve for x
ax + b = c


solve for r.
(r + y)/q = m

Answers

Solving for a
a=b-q
Solving for x
x=c-b/a
Solving for r
r=m/q-y

motor de un Drone que tiene una potencia de de 25W. 1- ¿Cuál será la tensión de trabajo de dicho motor si tiene un consumo de 1,5A? 2- ¿Cuál será la resistencia que tenga dicho motor?

Answers

Step-by-step explanation:

Drone motor that has a power of 25W. 1- What will be the working voltage of said motor if it has a consumption of 1.5A? 2- What will be the resistance of said motor?

Power of drone motor is 25 W

Current flowing through the motor is 1.5 A

Power of an electrical appliance is given by :

P = VI

V = working voltage of the motor

[tex]V=\dfrac{P}{I}\\\\V=\dfrac{25}{1.5}\\\\V=16.67\ V[/tex]

Voltage of the motor is 16.67 volts

Let R is the resistance of the motor. Using Ohm's law to find it as follows :

V=IR

[tex]R=\dfrac{V}{I}\\\\R=\dfrac{16.67}{1.5}\\\\R=11.113\ \Omega[/tex]

Hence, this is the required solution.

I need help on 1-8 ..

Answers

Answer:

To begin this problem we call "the sum of the number" x. Now we have the equation 2(x)+5=20. This is the answer because it said to translate the equation. I think 2x+5+20 would be the correct translation.

I need to solve 12r-6s=t for r

Answers

Answer:

Simplifying

12r + -6s = t

Solving

12r + -6s = t

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '6s' to each side of the equation.

12r + -6s + 6s = 6s + t

Combine like terms: -6s + 6s = 0

12r + 0 = 6s + t

12r = 6s + t

Divide each side by '12'.

r = 0.5s + 0.08333333333t

Simplifying

r = 0.5s + 0.08333333333t

Step-by-step explanation:

sorry if this doesnt help

Answer:

r=s/2+t/12

Step-by-step explanation:

To find the answer, add 6s to both sides to get 12r=6s+t. Divide both sides by 12 to get the answer.

Hello There!! I need help in this question...Use the interactive graph to plot each set of points. Which sets represent proportional relationships? Check all that apply. Use the interactive graph to plot each set of points. Which sets represent proportional relationships? Check all that apply. (3, 1), (6, 2), (9, 3) (2, 4), (4, 6), (7, 9) (1.5, 3), (3, 6), (4, 8) (3, 1), (4, 3), (8, 6) Plus, please make a explained to. And, do not guess to this...

Answers

Answer:

A- (3, 1), (6, 2), (9, 3) and C- (1.5, 3), (3, 6), (4, 8) are Correct

Step-by-step explanation:

please help due today

Answers

Answer:

let know that,

the number will we missing .

so answer will 5/5 is right

Answer:

1 aka 1/1

Step-by-step explanation: if a/b=c then c*b=a and a/c=b

5/10=1/12

1/2 / 1/2 = 1

check ur answer:

5/10 / 1 = 5/10 = 1/2

A bakery sold 39 mocha cupcakes in a day, which was 65% of the total number of cupcakes sold that day. How many total cupcakes did the bakery sell that day?

Answers

60 total cupcakes. Divide part/percentage = total. 39/.65=60

Help this is all I was given 7*f(5)=

Answers

Simplifying
7f(5) = 0

Reorder the terms for easier multiplication:
7 * 5f = 0

Multiply 7 * 5
35f = 0

Solving
35f = 0

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Divide each side by '35'.
f = 0

Simplifying
f = 0

Describe how to graph the points (3, -2) and (-1, -7).

Answers

Answer:

Place the dots on the x and y axis.

Step-by-step explanation:

(x, y)

Place the x axis dot on the lines that go left to right.

Place the y axis dot on the lines that go up and down.

I hope this helped! ^^

First answer gets brainliest!!!!! Please help

Answers

Answer: first answer

:))))))))))))))))))

Where my brainlist

Answer:

its the 3rd answer xD this took awhile to figure out

Step-by-step explanation:

Point L is on line segment KM. Given LM = 3x + 3,
KM = 5x + 4, and
KL = 5x + 1, determine the numerical length of KM.

Answer: KM =

Answers

Answer:

KM = 4

Step-by-step explanation:

[tex] LM = 3x + 3 [/tex]

[tex] KM = 5x + 4 [/tex]

[tex] KL = 5x + 1 [/tex]

[tex] KL + LM = KM [/tex] (segment addition postulate)

[tex] (5x + 1) + (3x + 3) = 5x + 4 [/tex] (substitution)

Solve for x

[tex] 5x + 1 + 3x + 3 = 5x + 4 [/tex]

Combine like terms

[tex] 8x + 4 = 5x + 4 [/tex]

[tex] 8x + 4 - 4 = 5x + 4 - 4 [/tex]

[tex] 8x = 5x + 0 [/tex]

[tex] 8x - 5x = 0 [/tex]

[tex] 3x = 0 [/tex]

[tex] x = 0 [/tex]

[tex] KM = 5x + 4 [/tex]

Plug in the value of x

[tex] KM = 5(0) + 4 [/tex]

[tex] KM = 0 + 4 = 4 [/tex]

there are 800 seats in the varsity theater. during regular preformances, all seats cost $12 each. It costs the owner $275 to pay his preformers for each show. a: write an expression that could predict the owners profit if "n" people buy tickets for a preformance b: if the profit is $1,213, how many people attend? c: If the same number of people attended but the owner's expenses changed to $375, would the profit increase or decrease and by how much?

Answers

Answer:

The correct answers are the following:

A) P=12n-275

B) 124

C) Decrease by $100

Step-by-step explanation:

A) P=12n-275 - Each person (n) pays $12, then the cost/expense ($275) is subtracted from the income to get the profit.

B) 1,213=12n-275  - Plug in the value for P ($1,213).

1,488=12n  - Add $275 to both sides.

124=n  - Divide both sides by $12.

n=124 - This the number (n) of people that attended.

C) P=12n-375 - Change the value for expense to $375.

P=12(124)-375  - Plug in the value for n (124).

P=1488-375  - Simplify and find the difference.

P=1,113 - This is your profit.

1,113-1,213=-100 - $100 reduction/decrease of profit (or -$100 to profit)

Hope this helps!

A store has 2 employees that earn 159 dollars altogether. If they all earn the same amount, how much does each employee earn?

Answers

$79.50 because you would just divide 159 by 2

a survey of 100 students showed that 45 students take english, 25 take math,

Answers

Nnunubbnununununnjksjskskska

Need help pppppppppplz

Answers

Answer:

83%

Step-by-step explanation:

The fraction shown is 5/6.

5/6= 0.83333333

0.83333333= 83%

What percent is represented by the shaded area?

Answers

Answer:

6%

Step-by-step explanation:

ok so count theres 6 squares filled out of 100 (10 by 10 squares)

fraction: 6/100

this is easy because its out of 100.  

a percent basically means out of 100 so boom.

6%

Answer:

6%

Step-by-step explanation:

6×100÷100

Domain:
Range:
State the domain and range for the graph

Answers

domain:

x <= 3

range:

x ∈ (-∞, ∞)

F(t)+-2t^2+5t, [1,6] What could this function model be used in real life?

Answers

Explanation:

It might represent the relative position of an object that has some initial velocity and constant acceleration. For whatever reason, the time period of interest is 1 to 6 seconds.

There are 67 electricians on a jobsite. Thirty-one (31) are "career" helpers. Twenty-four (24) are indentured apprentices. Nine (9) are journeymen. Three (3) are foremen. What percentage of the electricians are indentured apprentices?

Answers

Answer:

35.82 %

Step-by-step explanation:

Total no of electrician job = 67

No. of indentured apprentices = 24

____________________________________

Percentage mean per hundred,

Example for x percentage of any thing

literally it means if there are total no. of 100 things, then x  is the number of thing  in consideration.

Formula for  percentage calculation = (number of a particular thing/ total no of things out of which  the particular thing is considered) *100

______________________________________

Here,

Total no of electrician job = 67

No. of indentured apprentices = 24

percentage of  indentured apprentices = (Total no of electrician job /No. of indentured apprentices)   * 100 = 24/67 *100 = 35.82 %

Thus, there  35.82 % indentured apprentices  out of total electricians.

It means that if there were 100 electricians, then there would have been 35.82  indentured apprentices out of those 100 electricians.

6) A demand curve for a product is the number of items the consumer will buy at different prices. At a price of $2 a store can sell 2400 of a particular type of toy truck. At a price of $8 the store can sell 600 such trucks. If x represents the price of trucks and y the number of items sold, write an equation for the demand curve.

Answers

Given :

When price is $2 dollars he sells 2400 units .

When price is $8 dollars he sells 600 units .

To Find :

If x represents the price of trucks and y the number of items sold, write an equation for the demand curve.

Solution :

Two points are given :

[tex](x_1,y_1)=(2,2400)[/tex]

[tex](x_2,y_2)=(8,600)[/tex]

Now , slope is given by :

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}\\\\m=\dfrac{2400-600}{2-8}\\\\m=\dfrac{-1800}{6}\\\\m=-300[/tex]

Now , the equation of line containing these two points and slope -300 is :

[tex](y-y_1)=m(x-x_1)\\\\y-600=-300(x-8)\\\\y=-300x+2400+600\\\\y=-300x+3000[/tex]

Therefore , equation for the demand curve is [tex]y = -300x +3000[/tex] .

Hence , this is the required solution .

Subtract. WILL GIVE BRAINLIEST

(8f+4)–(6f+2)

Answers

Answer:

2f +2

Step-by-step explanation:

[tex](8f+4)–(6f+2)\\\\\mathrm{Remove\:parentheses}:\quad \left(a\right)=a\\=8f+4-\left(6f+2\right)\\\\-\left(6f+2\right):\quad -6f-2\\=8f+4-6f-2\\\\\mathrm{Simplify}\:8f+4-6f-2:\\\quad 2f+2[/tex]

2f+2

GIVE OTHER ANSWER BRAINLY!!!!!

Lin spent 80 minutes doing homework on Monday. Each day from Tuesday
through Friday, Lin spent half as much time doing homework as the day before.
How much total time did Lin spend doing homework, from Monday through
Friday? Explain how you know. *

Answers

Answer:

240 minutes

Step-by-step explanation:

Half of 80 is 40. So multiply 40 by 4 which is 160 minutes then add the 80 which equals 240 minutes

Overall 240 minutes Lin spend doing homework from monday to friday.

What is an expression?

Expression in mathematical is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Since Lin spent 80 minutes on monday doing homework and from tuesday to friday he is doing half the work before which means he will be doing in 40 mintues now for 4 days that is from tuesday to friday.

Now overall time in mintues he spend on homework will be sum of mintues spent on monday and mintues spent from tuesday to friday :

overall = 80 + 40x4

           = 240 minutes

Therefore, overall 240 minutes Lin spend doing homework from monday to friday.

Read more about property of multiplication here :

https://brainly.com/question/14391436

#SPJ2

Other Questions
The quotient of forty-five and a number, r earthquakes are most common I NEED AN ANSWER NOW!!! This is passed due!!! Dhruv is a car salesman. He is paid a salary of $2,200 per month, plus $500 for each car that he sells. His salary can be modeled by the equation f(x) = 500x + 2200, where x is the number of cars sold. Graph this equation and give its domain and range. A. D: {$500, $2700, $4900, $7100,...} R: {0, 1, 2, 3,...} B. D: {0, 1, 2, 3,...} R: {$2200, $2700, $3200, $3700,...} C. D: {0, 1, 2, 3,...} R: {$500, $2700, $4900, 7100,...} D. D: {$2200, $2700, $3200, $3700,...} R: {0, 1, 2, 3,...} What is the midpoint between the points (-4, 4) and (7, 7)? How did the political ideas of The Enlightenment influence the Declaration ofIndependence and the Constitution of the United States? How many cables enter the 2-gang wall switch box located next to the side garage door? Question 5 of 10Which option is an example of a conceptual model?A. A clay ball with a slice cut out, showing the layers of EarthB. A mental image of gas molecules as tiny ballsC. A diagram of a flagpole and its shadow with measurementsprovided to calculate the length of the shadowD. A weather map created by Doppler radar The difference of a number n and the number 8 is 42. Which ofthe following equations represents this statement?A)n/8 = 42B) n - 8 = 42C)n + 8 = 42D) 8n = 42E) n = 5 Which type of neuron detects a raindrop falling on skin? cell neuron motor neuron interneurons sensory neuron Cushing syndrome is caused by an increase in the synthesis of cortisol in the adrenal gland. Which of the following compounds is directly required as a substrate for the synthesis of this hormone?A) cholesterolB) glucoseC) free fatty acidsD) amino acids what are pollen grains? where areare they formed? Create a myth that explains why the sun rises and sets each day . Sam is skilled at making both necklaces and earrings. Sam has no preference between making necklaces or earrings since he earns the same amount from the two activities. If the selling price of earrings decreases from $40 to $20, then Sam's opportunity cost of making necklaces ______________ and making necklaces is now ______________ profitable than making earrings. Suppose that the necklaces market consists of several suppliers like Sam who are skilled at making both necklaces and earrings. Which of the following is likely to happen to the supply curve of necklaces when the price of a earrings decreases? A. It does not change B. It shifts to the left C. It shifts to the right combine like terms: 3x^2+4y-2x^2-x^2 Write 5.375 as a mixed number in simplest form Help me please its practice Select the sentence that shows correct parallel structure. a. To do well on final exams, students should not only study every day but also be getting enough sleep. b. To do well on final exams, students should not only study every day but also get enough sleep. c. To do well on final exams, students should not only have studied every day but also sleep enough. The article ``Oxygen Consumption During Fire Suppression: Error of Heart Rate Estimation" reported the following data on oxygen consumption (ml/kg/min) for a sample of ten firefighters performing a fire suppression simulation:29.5 49.3 30.6 28.2 28.0 26.3 33.9 29.4 23.5 31.6Compute the following:a. The sample range.b. The sample variance s2 from the definition (i.e. first computing deviations, then squaring them, etc.).c. The sample standard deviation.d. s2 using the shortcut method. What is Sindbad most motivated by in this passage? fatigue and curiosity discomfort and peace work and pleasure hunger and greed Solve for the variable xm = -12g + x