what is the difference between multiplying fractions and adding/subtracting fractions? complete sentances please

Answers

Answer 1

Answer:

See Explanation!

Step-by-step explanation:

When multiplying fractions, you do not need a common denominator, and the entire fraction gets multiplied across, however when adding or subtracting fractions, you must have a common denominator, and then only compute the numerator, as the bases are already the same


Related Questions

what is the answer to : 1.3(4.9 + 6k)

Answers

Answer:

you'd get the expression 6.37+7.8k

Can someone please help :!

Answers

Answer:

minimum

Step-by-step explanation:

Please help me!! ......

Answers

Answer:

b)480 cm^2

Step-by-step explanation:

perimeter=(16+12+20) cm

=48 cm

lateral surface area= perimeter × height

=48×10 =480 cm^2

During a high school basketball season, Casey successfully made 18 of the 25 free throws she attempted. What is her percentage of successful throws?

Answers

Answer:

72%

Step-by-step explanation:

Basket she made successfull = 18/25

Percentage = 18/25 x 100 = 72%


A sum of two mixed numbers is given.

What is the missing number?

Answers

Answer:

16.

Step-by-step explanation:

The whole numbers stay the same so it stays as 2. The way they get 30 for the denominator is by multiplying the fraction 1/3 by 10 and 1/5 by 6. So now we have 10/30 and 6/30. Add them together, 10+6=16

Can you PLEASE write a paragraph of how tragicomic functions work PLEASE!!!

Answers

They are used for making the sides of a triangle into a ratio. Sine is opposite of the angle divide by the hypotenuse, cosine is adjacent divided by the hypotenuse, and tangent is the opposite divided by the adjacent. Sine is the y-component, cosine is the x-component, and tangent is the ratio of sine/cosine or can also be considered the slope.

What is the discounted price of an item that originally costs $75.00 and is receiving at 20% discount?

Answers

Answer:

15 US dollars

Step-by-step explanation:

Sara is considering multiple job offers. She enjoys outdoor
activities like going to the beach. What non-income factor would
influence her decision?
Availability of benefits
LocationJob security
Working hours

Answers

The answer is location

hi any help would be useful in struggling! thank you

Answers

Answer:

ADD MORE POINTS THEN WE CAN TALK HUN THANK ME LATER HUN FOU

Step-by-step explanation:

PLS HELP !!! I need this question done quick

Answers

Answer:

a. 17  b. 51

Step-by-step explanation:

Follow Order of Operations (PEMDAS):

Parentheses, Exponents, Multiplication/Division, Addition/Subtraction

a.  9 + 4² - (4-2) • 4

9 + 4² - (4-2) • 4 –––Start with (4-2) = 2 (parentheses)

9 + 4² - 2 • 4 ––– 4² (exponents)

9 + 16 - 2 • 4 ––– 2 • 4 (multiplication)

9 + 16 - 8 ––– 9 + 16 (addition)

25 - 8 ––– 25 - 8 (subtraction)

17

b. 15 - 4 + 2(7-3) • 5

15 - 4 + 2(7-3) • 5 ––– Start with 2(7-3)

~ Note: this can be done using distributive property (2•7 - 2•3) OR solving the parentheses first and then multiplying 2(4). Both get 8 and same end result.

15 - 4 + 8 • 5 ––– 8 • 5 (multiplication)

15 - 4 + 40 ––– 15 - 4 (subtraction) *Note: Subtraction and addition are interchangeable in the order because you do it left to right*

11 + 40 ––– 11 + 40 (addition)

51

Answer:

(a. 7)  (b. 51)

Step-by-step explanation:

A.

[tex]9 + 4^{2} - (4-2) * 4\\\\9 + 4^{2} - (2) * 4\\9 + 16 - 2 * 4\\9 + 16 - 8\\25 - 8\\17 \\[/tex]

B.

[tex]15 - 4 + 2 (7 - 3) * 5\\15 - 4 + 2 (4) * 5\\15-4+(2*4*5 )\\15-4+40\\11 + 40\\51[/tex]

(I don't know the numerical values)

If 7/8 gallon of soil contains 1/8 the amount of soil a landscaper needs to fill a hole completely how much soil does it take to fill the hole

Answers

Answer:

1 gallon

Step-by-step explanation:

use square root property to solve for k
(k+5)= -24

Answers

Answer:

k= -29

Step-by-step explanation:

(K+5)=-24 move the constant to the right side and change it sign so now you have k=-25-5 and add them -25 + -5 = -29 so you’re answer it k=-29

If a tree in a 1 in.: 2ft scale drawing is 10 inches tall, how tall is the actual tree?

Answers

Answer:

20 ft.

Step-by-step explanation:

You can solve this as a proportion:

[tex]\frac{1}{2} = \frac{10}{y}[/tex]

The y is equal to 20.

Hope it helps!

What is the Domain and Range of this graph?​

Answers

Answer:

domain: -3 ≤ x ≤ 3

range:  -3 ≤ y ≤ 3

Step-by-step explanation:

x can only be from -3 to +3. That is what domain means.

y can only be -3 to +3. That is what range means.

12. Given f(x) = x - 3 and g(x) = 4x, find g(f(x)).
A. 4x -3
B. 4x - 12
C. 5x - 3
D. 3x3

Answers

It's b. 4x-12
Just put f into g

Raj weighs a book and rounds the weights to the nearest tenth. Does this weight round to 1.5 pounds?

1.52

Answers

True .......................
It’s true. Any number < 5 rounds to 0, and any number more than or equal to 5 rounds up

Andre and Elena are reading the same book over the 1 summer. Andre says he has read of the book. Elena ! says she has read 20 more pages than Andre. If Elena is on page 55, how many pages are in the book? Lin has drawn a diagram to solve this question. Find her error..​

Answers

Answer: There are 175 pages in the book.

Step-by-step explanation:

If Elena read 20 more pages than Andre and she read 55 pages, to find out how much Andre read you have to:

55-20= the pages Andre read

55-20=35

Andre read 35 pages.

If Andre read 1/5 of the book, then to find how many pages are in the book, you have to multiply 35 x 5. (Multiply by the reciprocal)

35 x 5= 175

There are 175 pages in the book.

Given equation: 3x-2y=6

How do you get the x-value of the x-intercept of the line?

Answers

Answer:

(2,0)

Step-by-step explanation:

Since you're finding the x-intercept, logically y will have to equal 0 in order for x to be at its intercept, therefore plugging in 0 for y in your equation will give you your x-intercept.

3x -2(0) = 6

3x = 6

x = 2

So the x=int for this equation would be at the point:

(2,0)

Hope this helps!

:)

0.392 is what percent of 28?
Pleasee

Answers

Answer:

28% of 0.392=0.10976

Step-by-step explanation:

1. We assume, that the number 0.392 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 0.392 is 100%, so we can write it down as 0.392=100%.

4. We know, that x is 28% of the output value, so we can write it down as x=28%.

5. Now we have two simple equations:

1) 0.392=100%

2) x=28%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

0.392/x=100%/28%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

Solution for what is 28% of 0.392

0.10976

A sector has an area of 50 ft sq, and a central angle of 45 degrees. Find the radius.

Answers

Answer:

Step-by-step explanation:

45° is 1/8 of a circle, so the area of the sector is 1/8 the area of the circle.

Area of circle = 8*50 = 400 sq ft

πr² = 400

r = √(400/π) = 20/√π ≈ 11.3 ft

what is the value of -3 1/2 x 2 1/2​

Answers

Answer: −8  3 /4

Step-by-step explanation: (−3  1 /2 )(2  1 /2 )

(-7/2)(5/2)

−35 /4

−8  3 /4

30% of the students are absent from math class. If there are normally 30 students, how many are missing?

Answers

9 students would be missing,
30 percent of 30 is 9, hope this helped :)

25x89 divided by 1/4

Answers

Answer:

8900

Step-by-step explanation:

25x89=2225

2225/(1/4)= 8900

Match each percent with the corresponding decimal

0.5%
5%
50%

Answers

Answer:

well your first two are going to be 0.05 and the late one is 0.5

Step-by-step explanation:

hope this helps tell if wrong

1. 0.5% = .005

2. 5% = .05

3. 50% = .50

Just move the decimal to the left two times

How long will it take Anna to earn $51.00?

Answers

Answer:

Needs More Information

Step-by-step explanation:

This depends on how much Anna is earning a day. If she is earning a dollar a day, then it would take her 51 days for her to earn this money. Hope this helps! Have a good day :)

SOMEONE PLEASE HELP ME WITH MY HOMEWORK ILL DO ANYTHING FOR HELP JUST HELP ME PLEASE

Answers

Answer:

there is a 1 to 15 relationship  between miles and gallons

Step-by-step explanation:

please help with this question!

Answers

Answer:

12

Step-by-step explanation:

pemdas so -9×-12 making it -3 and then -36 / -3 would be 12 ur final answer

Help me pls pls pls

Answers

Oh gosh gosh oh yeah yeah oh okie oh gosh oh

3. A manufacturing process produces integrated circuit chips. Over the long run, the fraction of bad chips produced by the process is 20%. Thoroughly testing a chip to determine whether it is good or bad is rather expensive, so a cheaper test is used. All good chips will pass the test, but so will 6% of the bad chips. a) (4 points) What is the probability that a randomly chosen chip will pass the test

Answers

Answer:

0.812 = 81.2% probability that a randomly chosen chip will pass the test

Step-by-step explanation:

Over the long run, the fraction of bad chips produced by the process is 20%.

So 100 - 20 = 80% are good.

All good chips pass the test, while 6% of the bad chips(20%) also pass.

a) (4 points) What is the probability that a randomly chosen chip will pass the test

[tex]p = 0.8 + 0.06*0.2 = 0.812[/tex]

0.812 = 81.2% probability that a randomly chosen chip will pass the test

Solve each single-step equation. Show your work. - 6 b + 2 < 56

Answers

Answer:

b > −9

Step-by-step explanation:

−6b+2<56

Step 1: Subtract 2 from both sides.

−6b+2−2<56−2

−6b<54

Step 2: Divide both sides by -6.

−6b  −6 < 54 −6

b >−9

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