In what ways is it useful to develop an algorithm for adding and subtracting rational numbers?

Answers

Answer 1

Answer:

because why not

Step-by-step explanation:

Answer 2

Answer:

We will cover Addition and Subtraction in one go, as they are the same method. Before we add or subtract, the rational numbers should have the same bottom number (called a Common Denominator).

Step-by-step explanation:

Related Questions

I am confused. Help 15 points

Answers

Use the formula:

y2 - y1/x2 - x1

The product of two consecutive negative even integers is 24. What is the smaller of the two numbers?
A -6
B -5
C -4
D -2
E 4

Answers

A is answer I think maybe

the answer is...
C -4

Benny had 78 dollars to spend on 8 books. After buying them he had 14 dollars. How much did each book cost?

Answers

Answer:

Book costs $8

Step-by-step explanation:

(78-14)÷8=

64÷8=

Answer:

78-14=64

64/8=8

Step-by-step explanation:

each book cost 8 dollar

Pls help like plsss and thx

Answers

The answer Would be 1.5

Which ordered pairs in the form (x, y) are solutions to the equation

4x−5y=24

Select each correct answer.

(6, 0)

(4, 8)

(−9, −12)

(1, −4)

Answers

Answer:

(6, 0) (-9, -12) (1, -4)

Step-by-step explanation:

To find the x-intercept, substitute in
0 for y and solve for x. To find the y-intercept, substitute in 0 for x and solve for y.
x-intercept(s):
(6,0)

y-intercept(s):
(0, - 24/5)

Jerome ordered some CDs and DVDs online. He bought 2 CDs and 5 DVDs. He spent a total of $138.45.

Part 1: Write the equation for this word problem. Be sure to identify your variables.

Part 2: If each CD cost $14.25, solve the equation to find the cost of each DVD. Show your work.

Answers

Answer:gchckc

Step-by-step explanation:

let x be CDs and y be DVDs
2x + 5y = 138.45
plug in the cost of the CDs for x
2(14.25) + 5y = 138.45
multiply
28.50 + 5y = 138.45
subtract 28.50 from both sides to isolate y
5y = 109.95
divide both sides by 5 to isolate y
y = 21.99

to check if the answer is correct plug in your answer <3

Last problem of the day hopefully I can get all A

Answers

Answer:

The answer is 21

Step-by-step explanation:

Simplify 2² to 4

Simplify 5² to 25

25=b²+4

b²=25-4

b²=21

and because you cant square root 21 the answer would be ±[tex]\sqrt{21}[/tex]

Answer:

squarerot of 21

suareroot of 21 5^2=2^2+b^2 25=4+b^2 21=b^2 squareroot of 21

suareroot of 21. 5^2=2^2+b^2, 25=4+b^2, 21=b^2, squareroot of 21

Step-by-step explanation:

i did the quiz

The auto insurance plans available from Fret-No-More Auto Insurance are outlined in the table below. To be considered “full” coverage, an insurance plan must include one level of coverage from each category. What is the annual premium for the cheapest insurance plan available from Fret-No-More that is considered full coverage?

Fret-No-More Auto Insurance
Type of Insurance Coverage
Coverage Limits
Annual Premiums
Bodily Injury
$25/50,000
$21.35

$50/100,000
$32.78

$100/300,000
$42.10

Property Damage
$25,000
$115.50

$50,000
$142.44

$100,000
$193.78

Collision
$100 deductible
$490.25

$250 deductible
$343.33

$500 deductible
$248.08

Comprehensive
$50 deductible
$105.79

$100 deductible
$88.23
a.
$473.16
b.
$490.72
c.
$715.33
d.
$732.89

Answers

Answer:CAN I GET BRAINLIEST PLS?

Your answer would be A) 473.16$

Step-by-step explanation:

Your answer would be A) 473.16$ because, if your question is "The auto insurance plans available from Fret-No-More Auto Insurance are outlined in the table below. To be considered “full” coverage, an insurance plan must include one level of coverage from each category. What is the annual premium for the cheapest insurance plan available from Fret-No-More that is considered full coverage?" and the second part that has the choices are a.

$473.16

$490.72

$715.33

$732.89 then the answer would be A

Answer:

Your answer is: A) 473.16

Step-by-step explanation:

Hope this helped : )

Pythagorean theorem)

Answers

Answer: its b ;p

Step-by-step explanation:

Answer:

5.7

Step-by-step explanation:

6 times 6 is 36 2 times 4 is 2. 36 - 4=32 and 32 squared is 5.656

please help this isn't a test it's just work I'm missing

Answers

#1 is 81

Step-by-step explanation:

Answer:

1. 81

2. -9

3. -20

4. 4

Step-by-step explanation:

1. a negative times a negative always makes a positive

2. dividing a positive and a negative always gives you negative

3. multiplying a negative and a positive always gives you negative

4. dividing a negative and a negative always gives you positive

In the game played on the board below, players move their pieces clockwise. If the length of each square represents one space, what is the distance between the purple game piece and the next red triangle it will reach?
A. 2 spaces B. 8 spaces C. 4 spaces D. 6 spaces

Answers

Answer:

Step-by-step explanation:

i just took the test

4 spaces… lmk if you need more help

Add.

15912+81317+23312+25417

71

71 1/2

72 1/2

73

i will give you braineist

Answers

Answer:

145958

Step-by-step explanation:

just add the numbers togather I use a calculater or acually do the math

Answer

122934

Step-by-step explanation:

what values can x have if x =|8|

Answers

Answer:

hmmm good question tbh sike easyyyyyy smh

Step-by-step explanation:

x-8=0

Answer: i think 8

Step-by-step explanation:

i think 8 would have to be the absolute value of x in this circumstance

your answer is C

I think it's right :D

20 POINTS

Answers

Answer:

it is thx

Step-by-step explanation:

The distance between Dallas, Texas, and Little Rock, Arkansas, is about 467 km. What is the distance between these two cities measured in dm?
A.46,700dm
B.4,670dm
C.4,670,000dm
D.467,000dm

Answers

The answer is C. 4,670,000dm

C 4,670,000dm

Explanation: I’m smart kinda

Round the number 82.365 to the nearest hundredth.

Answers

Answer: 82.36

8 = tens place

2 = ones place

3 = tenths place

6 = hundredths place

Hope it helps!

please help i got so much homework and this is only a small portion of it!
And please label #1 or 2
so for the dance committee put #1
and for Jasmine put #2

Answers

Answer:

1) the equation would be .80x+65 is less than or equal to 125. x= amount of balloons they can buy. the answer for the equation would be less than or equal to 75.

2) 4.8 miles per hour

Step-by-step explanation:

1. 60 divided by 0.80

HERE is the question lol

Answers

Divide 450 by 5 and that should give you the answer for that question

well i do hate study island

Answers

Answer:

y=2x+5 automatically u can see the y intercept is 5 so it has to be this one. But also u can see the slope going up by 2

Step-by-step explanation:

also I hate study Island too I rmbr using it in like the 5th grade. Bet its changed alot now.

Answer:

the answer is clearly b ;-;

Step-by-step explanation:

Identify which numbers are written correctly in scientific notation and which are not.
7.8 x 10^1
10.3 x 10^-8
3.5 x 8^4
3 x 10^6
2.12 x 10^-4
3.4 x 10^8
0.18 x 10^5
70 x 10^-9

Answers

Answer:70×10^-9

0.18×10^5

10.3×10^-8

Are not written correctly in scientific notation

Step-by-step explanation:they are not written correctly because a number whose absolute value is greater than or equal to 1 and 10 multiplied by an integer per of 10. So for short there either lower than 1 or higher than 10 and need to be between to be scientific notation. I hope this helped you

...........70x10^-9............

Are the figures similar?

Answers

Answer:

Step-by-step explanation:

In the first quadrant, you start at (3,6) and you move 3 units down.
What point will you end up on? ( ? , ? )
Fill out the question mark spaces, please.

Answers

Answer:

you will be at (3,3)

You will end up on (3,3)

5

-5

-6

3
help ASAP i will mark u as brainliest if corrrect

Answers

It is 1/5

Rise over run

Answer:

It is 1/5

Step-by-step explanation:

can i have briniest

is 2/3 rational number

Answers

Answer:

yes

Step-by-step explanation:

because it is a fraction and is positivee

Answer:

A rational number is any integer, fraction, terminating decimal, or repeating decimal.

Your Answer: Rational

Step-by-step explanation:

Hope this helps : )

4-36.
Look back at the tables and graphs you created for proportional relationships in the previous problems.

How can you use a table to decide if a relationship is proportional?

How can you use a graph to decide if a relationship is proportional?

Answers

1. you can use fractions, reduce the number, or compare them and if they are the same
then they are classified as proportional.

2. you can use a graph by graphing two sets of numbers, if it’s proportional it will form a straight line that goes through the origin.

You can use fractions and graphs

Determine whether the ratios form a proportion.
A) Yes, Proportional
B) No, Not Proportional

Answers

Answer:yes proportional

Answer:

Step-by-step explanation:

Hope this helps! Please consider making me brainliest!!!!!!!!

helpppppppppppppppppppppppppppppppppppp

Answers

The answer is x=4 I believe

Tom bought 9 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are now only 28 cards left. How many cards did Tom start with ?

Answers

Tom started with 47 cards.

He had 28 left. If his dog ate half then multiply 28 by 2

You get 56

Out of those 56 cards, 9 of them are new

So subtract 9 from 56

You get 47

Tom started with 47 cards

28+28=56

9 are new so 56 - 9 = 47 which is your answer

The temperature rises 4 degrees every hour for 10 hours. What is the constant of proportionality in this situation?

Answers

Answer:

Step-by-step explanation:

Mmm since it goes up by 4 every hour for 10 hrs

It's constantly going up by 4

Hope this helps dude ^-^

+4
the temperature is going up +4 each hour...

What is the maximum number of circles of radius 1 you can fit, without overlapping them,
in a circle of radius 3?

Answers

I think it’s a carrot I just need points

Ya it’s right hopefully that helps

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