how do you decide which rational number operations to use to solve the problems?

Answers

Answer 1

Answer:

The process of "choosing the operation" involves deciding which mathematical operation (addition, subtraction, multiplication, or division) or combination of operations will be useful in solving a word problem.

Step-by-step explanation:


Related Questions

i do not get can some one help i really need it

Answers

Answer:

8 lb

Step-by-step explanation:

Use the graph relations.

Answer:

7.5 lb

Step-by-step explanation:

Look at the points on the graph.

She paid $1 for 1.5 lb.

She paid $2 for 3 lb.

She paid $4 for 6 lb.

She paid $7 for 10.5 lb.

Now divide each amount of lb by each cost.

1.5/1 = 1.5

3/2 = 1.5

6/4 = 1.5

7/10.5 = 1.5

In every case, she got 1.5 lb for each dollar.

On the day she spent $5, she got 1.5 lb for each dollar.

$5 * 1.5 lb/$ = 7.5 lb

Answer: 7.5 lb


What is 52% of 25? i got 13 is that correct??

Answers

Answer:

Yes that is correct

Step-by-step explanation:

52  x 25 = 1,300

1300/ 100= 13

help please :)))))) im suck!

Answers

Answer:

D

Step-by-step explanation:

there are 5 (1/5) in an hour. so multiply 3/8x 5 = 15/8 which is 1 7/8

ok this is my almost last one

Answers

Answer: 101.5


11x6.5 = 71.5

6x5 = 30

Add together the products

Find the distance between (-5,3) and (4,-5). Round your answer to the nearest hundredth.

Answers

Answer:

12.04

Step-by-step explanation:

square root 2(9x9 + 6x6) = 12.04

WATCH OUT: There is someone named RiveraAlvarezBryan. This person writes nice things instead of answering your question to get points.​

Answers

Answer:

Ok

Step-by-step explanation:

Hi there! please please help:)) have a good day

Answers

Answer:

b

Step-by-step explanation:

sorry if wrong dont report

Answer:

can barely read the graph luv :(

WILL GIVE BRAINLIEST PLEASE HELP
:)

You decide to take a trip to Japan to see Mt. Fuji in person. But while you are there, you can bring back some of those rectangular watermelons you’ve heard so much about. Now, you’re packing for your trip. You have two small bags. In order for you to carry a bag on the plane, it must fit inside the Carry-on Baggage Check Box. The Carry-on Baggage Check Box has dimensions of approximately 22" x 14" x 9". Your leather bag has a height of 18 inches, a depth of 12 inches, and a width of 8 inches. Your canvas bag has a height of 18 inches, a depth of 15 inches, and a width of 10 inches.

1. What is the volume of the Carry-On Baggage Check Box?
2. What is the volume of the leather bag?
3. What is the volume of the canvas bag?
4. Which bag will definitely fit into the Check Box? Explain.

Answers

Answer:

You have my profile picture

Step-by-step explanation:

Answers:

1. The volume of the carry-on baggage check box is 2772 inches³

2. The volume of the leather bag is 1728 inches³.

3. The volume of the canvas bag is 2700 inches³.

4. The leather bag will definitely fit into the check box.

Hope this helps!

When answering, make sure to put the units, which is inches cubed, which you always use for finding the volume of a figure.

Happy learning,

Applepi101

hi again :) it's me again

Answers

Answer:

Heyyy

Step-by-step explanation:

Hiiiiiiiiiiiiiiiiiiiiiiiiii

what is the perimeter of the triangle. i do not know how to start this problem. any help will be greatly appreciated :))

Answers

Given:

Point F,G,H are midpoints of the sides of the triangle CDE.

[tex]FG=9,GH=7,CD=24[/tex]

To find:

The perimeter of the triangle CDE.

Solution:

According to the triangle mid-segment theorem, the length of the mid-segment of a triangle is always half of the base of the triangle.

FG is mid-segment and DE is base. So, by using triangle mid-segment theorem, we get

[tex]\dfrac{1}{2}DE=FG[/tex]

[tex]DE=2(FG)[/tex]

[tex]DE=2(9)[/tex]

[tex]DE=18[/tex]

GH is mid-segment and CE is base. So, by using triangle mid-segment theorem, we get

[tex]\dfrac{1}{2}CE=GH[/tex]

[tex]CE=2(GH)[/tex]

[tex]CE=2(7)[/tex]

[tex]CE=14[/tex]

Now, the perimeter of the triangle CDE is:

[tex]Perimeter=CD+DE+CE[/tex]

[tex]Perimeter=24+18+14[/tex]

[tex]Perimeter=56[/tex]

Therefore, the perimeter of the triangle CDE is 56 units.

what is the interquartile range numbers 777,498,619,379,895,1256,1052​

Answers

Answer:

554

Step-by-step explanation:

554  trust meh dude

Answer:

554

Step-by-step explanation:

CAN IN THIS APP HELPS ME I POSTED THE QUESTION 4 TIMES LOST ALL MY POINTS PLEASE Help please help me

Answers

Answer:

i am not certain but i think i am correct

LA- 131.88

SA- 188.4

V- 197.82

Step-by-step explanation:

LA-

2×3.14= 6.28

6.28×3= 18.84

18.84×7= 131.88

SA-

2×3.14= 6.28

6.28×3= 18.84

18.84×7= 131.88

2×3.14= 6.28

6.28×3= 18.84

18.84×3= 56.52

56.52+131.88= 188.4

V-

3.14×3= 9.42

9.42×3= 28.26

28.26×7= 197.82

as i said i am not sure if this is right

Mrs. Watson shared a cheese pizza among herself and four children. Each person ate 18 of the pizza. How much of the pizza was eaten in all?

Answers

Answer:

90

Step-by-step explanation:

Solve for m. Express your answer as a interger or in simplest radical

-158=-8-5m

Answers

Answer:

Step-by-step explanation: -8 - - 158= 5

=>5m=150

=>m=30

Step-by-step explanation:

1. Rearrange term

-158=-8-5m

-158=-5m -8

2. Add 8 to both sides of the equation

-158=-5m -8

-158+8=-5m -8=8

3. Simplify

-158+8=−5m−8+8

−150=−5m-8+8

−150=−5m−8+8

−150=−5m

4. Divide both sides of the equation by the same term

−150=−5m

−150=−5m

-5         -5

5. Simplify

... I am getting tired so, I am going to skip to the answer

ANSWER

m=30

Josh used one hundred dollars less than three-fourths of his paycheck to buy a new N. it the cost of
the new TV was $488, how much was his paycheck?

Please don’t put the answer in a link.

Answers

Answer:$175

Step-by-step explanation:

The amount of his paycheck would be $ 784.

What is the solution for an equation?

The solution of an equation refers usually to the values of the variables involved in that equation which if substituted in place of those variable would give a true mathematical statement.

WE have been given that Josh used one hundred dollars less than three-fourths of his paycheck to buy a new N the cost of the new TV was $488.

Let P = pay amount

3/4 P  -100  = 488    

Now add 100 to both sides of the equation

3/4 P  = 588            

Then multiply both sides of the equation by 4/3;

P =  $ 784

The amount of his paycheck would be $ 784.

Learn more about solving equations here:

https://brainly.com/question/13072448

#SPJ2

i really need help i am really bad at math

Answers

The answer to this questions is c

Can someone help me on a essay (how do you use math outside of school)?

Answers

Answer:

Step-by-step explanation:

Im not going to write the entire essay but here's some ideas for every paragraph. Like the main ideas.

(introduction explain why people should read this essay)

(paragraph 1) Explain different jobs that use math daily and why these jobs are  essential.

(paragraph 2) Math can help in social situations. For example, If someone asks you for the time and you don't know how to tell time.

(paragraph 3) Mathematics makes our life orderly and prevents chaos. Certain qualities that are nurtured by mathematics are power of reasoning, creativity, abstract or spatial thinking, critical thinking, problem-solving ability and even effective communication skills.

(conclusion) Reinstate your main idea and purpose of the essay.

Hope this helps you organize your thoughts!  

what is -2.4x + 9 + 8x + 4.2 = 58

Answers

the answer is x=8 hopefully this helps

Answer:

X=8

Step-by-step explanation:

PLEASE HELP ILL GIVE BRANLIEST
each rotating sprinkler in the park can water a circular section of grass that has a radius of 50 feet. which is closest to the area, in square feet, of the grass sprinkler water can cover? A: 314
B:628
C:7850
D:15,700

Answers

Again, use the area of a circle formula

A=pi(radius)2
A= 3.14(11)2
A=380.133 ft2

The area covered by the water will be 7850 square feet. The correct option is C.

What is the area of the circle?

The space occupied by any two-dimensional figure in a plane is called the area. The space occupied by the circle in a two-dimensional plane is called the area of the circle.

Given that each rotating sprinkler in the park can water a circular section of grass that has a radius of 50 feet.

The area of the circle will be calculated by the formula below,

A = πr²

A=3.14 x ( 50 )²

A=7850 square ft

Hence, the area will be 7850 square feet.

To know more about an area follow

https://brainly.com/question/25292087

#SPJ2

Find mMK................

Answers

Answer:

Approximately mMK is 53 degrees

Step-by-step explanation:

Here, we want to find the length of MK

As we can see, we have a right triangle at LNK

so

let us find the angle at L first

9 is adjacent to the angle at L and also, 15 is the hypotenuse of the angle at L

so the trigonometric identity that connects adjacent to the hypotenuse is the cosine

It is the ratio of the adjacent to the hypotenuse

So;

cos L = 9/15

L = arc cos (9/15)

L = 53.13 degree

Approximately, L = 53 degrees

so now, we want to get the arc length MK

We are to use the angle-arc relationship here

Using this; arc length MK is equal to the measure of L at the center which is 53 degrees

What is the volume of a sphere with a radius of 8 m, rounded to the nearest tenth of a
cubic meter?

Answers

Answer:

2145.5m^3

Step-by-step explanation:

volume of a sphere= 4/3 pi r^34/3×22/7×8×8×82145.52since the hundredths value is less than 5 the answer remains the same hence answer 2145.5m^3

I really need help with this question

Answers

Answer:

where is it at

Step-by-step explanation:

sheeeeeeesh

help pleaseeeeeeeeeee

Answers

Answer: b

Step-by-step explanation:

What is the rate of change of the function y = x + 52

Answers

Answer: 1
Explanation: The slope of the function is 1 (being the coefficient in front of X) and slope is the rate of change :)

Fill in the factor:
11 × ___=99

Answers

Answer:

9

Step-by-step explanation:

11 × 9 = 99

The slope of any vertical line is?

Answers

Answer:

The slope of any vertical line is undefined.

Step-by-step explanation:

The slope of a line is the change in Y divided by the change in X. The slope of a horizontal line = 0 (not undefined). The slope of a vertical line is undefined, however. Hope this helps; have a great day!

What are the solutions for 4x^2+81=36x

Answers

The answer is x= 9/2

ASAP PLEASE HELP!!!!

Answers

it’s like 20 or something

how do i turn all of these into equivalent fractions?

Answers

Step-by-step explanation:

if it helps don't forget to like and Mark me

In December, a car salesman sold 60 cars. In January, he only sold 24. Find the percent decrease in his monthly sales.

Answers

Answer:   45.6

Step-by-step explanation:

60 - (24% × 60) =

60 - 24% × 60 =

(1 - 24%) × 60 =

(100% - 24%) × 60 =

76% × 60 =

76 ÷ 100 × 60 =

76 × 60 ÷ 100 =

4,560 ÷ 100 = 45.6

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