Mathematics High School

When adding and subtracting fractions, what MUST be the same before you even begin to add or subtract?

Numerators

Denominators

Fractions

Whole Numbers

Answers

Answer 1

Answer:

Denominators

Step-by-step explanation:

When it comes to adding or subtracting fractions, the denominators must be ALWAYS the same.

Answer 2

Answer:

Denominator

Step-by-step explanation:

All operations involving addition and subtraction of fractions must be under the same denominator before solving the problem.

Related Questions

WHAT IS THE ANSWER PLEASE HURRRRYYYYY

Answers

Answer:

1238

Step-by-step explanation:

hindi ko alam ask mo nalang sa mama mo hahaha baka sakaling alam niya yung sahot na tinatanong mo hahaha

-½ (6x + 4) + ½(8x - 2)

Answers

Answer:

-3x - 2 + 4x - 1 = x - 3

Step-by-step explanation:

open brackets and simplify

Answer:

x−3

Step-by-step explanation:

Hope this helps.

help!!! I will give brainiest to whoever gets both​

Answers

Answer:

She has to buy 48 inches of ribbon

Step-by-step explanation:

We know that the pillow is a square with an area of 144. This means that all the side lengths must be the same. If we take the square root of 144 we get 12 which is the length of one side of the square. Because there are four sides to a square, we multiply this by 4. So 12 x 4 = 48 inches of ribbon.

The first hexagon is dilated to form the second hexagon.

Select answers from the drop-down menus to correctly complete the statements.

The scale factor is
0.80
1.25

This represents

.

Answers

Answer:

1.25

Step-by-step explanation:

PLEASE HELP MEEEEEE!!!!!
I literally have to get this done

Answers

I believe the answer is 360. Let me know if you want a step by step answer! Hope this helps!!

A company sells widgets. The amount of profit, y, made by the company, is related to
the selling price of each widget, x, by the given equation. Using this equation, find out
what price the widgets should be sold for, to the nearest cent, for the company to
make the maximum profit.
3032 + 13251 – 8569

Answers

Answer:

bad expression

Step-by-step explanation:

13251+3032−8569=7714

What is the area of this parallelogram?

A. 28 m²

B. 56 m²

C. 84 m²

D. 120 m²



PLS HELP I'LL GIVE BRAINLYIST

Answers

Answer:

84m^2 or C

Step-by-step explanation:

area = base * height

= 12 * 7 = 84

Answer:

8 + 4 = 12 x 7 = 84m

In WXY, w=130 inches, x=270 inches and y =190 inches. Find the area of WXY to the nearest square inch

Answers

Answer:

11304

Step-by-step explanation:

Delta math

Suppose you deposited ​$200 in a savings account 4 years ago. The simple interest rate is 2.1%. The interest that you earned in those 4 years is ​$16.80. Which of the following​ is/are true? Select all that apply.
A. r = 2.1%
B. t = 4
C. p = 16.80
D. l = 200

Answers

Maybe A???? Not totally sure

plz help me due today help me

Answers

Answer:

7.7 %

Step-by-step explanation:

352-325

=27

27/352 x 100/1

7.670

=7.7%

Answer: 7.7%

Step-by-step explanation:

1. 352 - 325 = 27. This is how many students left.

2. x/100 = 27/352 is the equation.

3. Solve for x: 2700/352 = x = 7.6704

This rounded to the nearest tenth is 7.7%

Libby earns $10 each hour for babysitting. Let m = the money she earns, and t = the time in hours she is babysitting. What equation represents this proportional relationship?

Answers

Answer:

$10t=m

Step-by-step explanation:

If for each hour is $10.

She would earn the number of  hours times $10.

Example: She did babysitting for 4 hours this weekend. The equation is $10(4)=m or $10 x 4 = m.  m=40

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Answers

Answer:

2.5 cm is the radius

Step-by-step explanation:

what is the sum of the exterior angles of regular 24-gon

Answers

9514 1404 393

Answer:

  360°

Step-by-step explanation:

The sum of exterior angles of any convex polygon is 360°.

What is the equation of the line that passes through the point (-5,5) and has a
slope of -1?

Answers

Answer:

y = - x

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = - 1 , then

y = - x + c ← is the partial equation

To find c substitute (- 5, 5 ) into the partial equation

5 = 5 + c ⇒ c = 5 - 5 = 0

y = - x ← equation of line

A handbag contains seven coins and three
keys. Two items are taken out of the handbag
one after the other and not replaced. Find
the expected number of keys taken out of the
handbag

Answers

Answer:

0.59998

Step-by-step explanation:

Number of keys = 3

Number of coins = 7

Total = 10

Number of items taken out = 2

Expected number of keys taken out:

Let x = Number of keys taken out

X = 0

1st pick = 7/10

2nd pick = 6/9

7/10 * 6/9 = 0.46666

X = 1

(7/10 * 3/9) + (3/10 * 7/9) = 0.46666

X = 2

(3/10 * 2/9) = 0.066666

X : ____ 0 ______ 1 _______ 2

P(X): _0.46666__0.46666 _0.06666

Expected value :

(0*0.46666) + (1*0.46666) + (2*0.06666)

= 0.59998

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Answers

To find the Surface area of a prism, we need to calculate the sum of the area of each of the shapes that make up the net of the object.

(11 x 15 x 2) + (5 x 15 x 2) + (5 x 11 x 2)

= 590ft ^2

Hope this helps!!

help please need answers ​

Answers

Answer:

slope: 2/3 or 0.6666...

Step-by-step explanation:

find two points on the line : (1,2) and (0,-2) and do rise over run. Rise = 2 and Run = 3, so you put it in rise over run form. Rise/Run = 2/3. The graph is positive.

Giorgio fenced off an area for a vegetable garden.
1
2
He made the garden 9 feet long and 8 feet wide.
2
3
What is the area of the vegetable garden?

Answers

Answer: The area is 72ft.

slove for x pleaseee

Answers

The answer is x = 9, hope I could help! :)

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on a piece of paper graph y ≤ -2x . then determine which answer choice matches the graph you drew. Which of the following is correct?.

Answers

Answer:

The correct answer is D

Step-by-step explanation:

The  graph of inequality y ≤ -2x is option D .

What is inequality?

Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.

According to the question

y ≤ -2x  

The graph of inequality  

at x = -2

y≤ 4

at x = 3

y ≤ -2*3

y ≤ -6  

Hence, the  graph of inequality y ≤ -2x is option D .

To know more about inequality here:

https://brainly.com/question/20383699

#SPJ3

The answer to this problem

Answers

Answer:

Check pdf

Step-by-step explanation:

Answer:

p ≥ − 9

Step-by-step explanation:

what is the 11.2???

7/8m= -14 solve using the multiplicative interverse​

Answers

Answer: m=-16

Step-by-step explanation:

Combine multiplied terms into a single fraction, Multiply all terms by the same value to eliminate fraction denominators and Simplify.

HELP ASAP !! I have trouble with this

Answers

Answer:

x= 0.7227 in radians

x= 41.4096 in degrees

Step-by-step explanation:

cos(x) = 6/8

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Answers

The coordinates of B would be (-1, -3)

A local dump truck is carrying 13.4 tons of gravel. How many pounds is it hauling?

Answers

Answer:

26,800 pounds of gravel

Step-by-step explanation:

13.4 tons is equal to 26,800 pounds

A handyman charges $150 plus $25 per hour for house painting. A painter charges $55 per hour. How many hours would it take for the handyman's fee and the painter's fee to be the same?

Answers

Answer:5 hours

Step-by-step explanation:

55*5=275 and 25*5+150=275

HELP. NEED NOW. WILL MARK BRAINLIEST.
Use the method of completing the square to transform the quadratic equation into the equation form (x+p)^2.
-6x^2+-6x+12=0

Answers

Answer:x=1 or x=−2

Step-by-step explanation:

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MEEEE PLEASE

Answers

Answer:

yse

Step-by-step explanation:

bakit ano ang maitotolong

(3x+3)^2+(x+5)(x-4)
someone help thankyou

Answers

Use this. It’s really good
10x^2+ 19x - 11
(if the directions said to simplify)

Can someone help me. Will Mark brainliest.

Answers

Answer:

The answer is 50.

Hope this helps. sry if it is wrong

Other Questions
plz help me due today help me Nayla delivers 63 magazines on Saturday and 72 magazines on Sunday. She makes bundles of 9 magazines for each of her delivery routes. How many delivery routes does Nayla have on Saturday and Sunday? anyone help pls!! will mark brainliest can you please show me how you do this problem im having trouble with it thanks! PLZ help! I will give brainlest to fist correct answer! on a piece of paper graph y -2x . then determine which answer choice matches the graph you drew. Which of the following is correct?. What is the equation of the line that passes through the point (-5,5) and has aslope of -1? The sum of a number and six times its reciprocal is 10. Find the number About how many frames were used to make the film Sleeping Beauty? O 2,700 O 21,000 O 63,000 O 114,000 The first hexagon is dilated to form the second hexagon.Select answers from the drop-down menus to correctly complete the statements.The scale factor is 0.801.25This represents . In which rainforest three layer would you most expect to spot a harpy eagle 1. What is WRONG with the setup used by the student to solve thisproblem?10 pointsIf 53.8 grams of Aluminum Carbide is treated with Sodium Oxide, how many moles of Aluminum Oxide isproduced?AlqC3 +6 Na2O + 2 Al2O3 + 3 Nand53.8 g ALC1 mole ALC2 mole Al2O3101.96g Al2O3143.92 g AL C31 mole ALC1 mole Al2O3The student used the wrong mole ratio.O The student is solving for the wrong unit. The student used incorrect steps.The student's setup is correct.INITI Suppose you deposited $200 in a savings account 4 years ago. The simple interest rate is 2.1%. The interest that you earned in those 4 years is $16.80. Which of the following is/are true? Select all that apply. A. r = 2.1%B. t = 4C. p = 16.80D. l = 200 A handyman charges $150 plus $25 per hour for house painting. A painter charges $55 per hour. How many hours would it take for the handyman's fee and the painter's fee to be the same? - (6x + 4) + (8x - 2) Growing up, Hitler dreamed of becoming a(n) _. However, he later discovered a talent for _ that helped him rally support for him and his causes.Answer: artist, public speaking After you set up your apparatus for the second part of the experiment, your group begins to add the textbooks on top of the plunger. It appears that the plunger continues to drop with every added book and does not return to its original place after the books are removed. What possible sources of error could be given for this experimental outcome? Be specific and give at least two reasons. m is equal to the number of terms in this expressionA.2B.7C.6D.9 2 3/4 yards of fabric for $22 express as unit rate. round to nearest cent if necessary Completa con los lugares que faltanCompleta:Ests en el colegio. Para ir al supermercado sigue todo ____luego ____ la segunda a la izquierda. Sigue todo recto por la calle y girala segunda a la ____Sigue todo recto, all est elsupermercado, enfrente del _____ (I figured the question out already)