What is the LCD of 8/21 and 2/7?

Answers

Answer 1

Answer:

21

Step-by-step explanation:

7 can go into 21

Answer 2

Answer:

21

Step-by-step explanation:

Equivalent Fractions with the LCD

8/21 = 8/21

2/7 = 6/21

Solution:

Rewriting input as fractions if necessary:

8/21, 2/7

For the denominators (21, 7) the least common multiple (LCM) is 21.

LCM(21, 7)

Therefore, the least common denominator (LCD) is 21.

Calculations to rewrite the original inputs as equivalent fractions with the LCD:

8/21 = 8/21 × 1/1 = 8/21

2/7 = 2/7 × 3/3 = 6/21


Related Questions

A machine can make 5 miles of ribbon in an hour. Graph the length of the ribbon the
machine will make in eight hours. Another machine can make 8 miles of ribbon in an
hour. Graph the length of the ribbon the machine will make in 8 hours. What is the
difference in length for a 8 hour period between the two machines? Write an Equation
in slope intercept for each machine.

Answers

sad and sad story to be seen

Identify an inequality that represents x (in inches).

Solve the inequality.
The solution of the inequality is .

Answers

Answer:

bro its 8 inchis

Step-by-step explanation:

Plz help me with these last 2 questions

Answers

I believe it’s 192 Square inches

Answer:

192

Step-by-step explanation:

PLEASE HELP ME ASAP I'M HORRIBLE AT MATH (/▽\)
Tell me step by step how to do it pls

Answers

Answer:

y=8/7

Step-by-step explanation:

Or 1 1/7

Or 1.14

Hope this helps!

Answer:

[tex]y=\frac{8}{7}[/tex]

OR

[tex]y=1\frac{1}{7}[/tex]

Step-by-step explanation:

Luckily for you, I'm pretty decent in math

Here's how I did it: [tex]\frac{14y}{14} = \frac{16}{14}[/tex] (Divide 14 on both sides)

Give you y = 8/7

The length of a side of an equilateral triangle is x−4.5.

First, express its perimeter as a sum.

Next, express its perimeter as a product.

Answers

Answer:

The sides of an equilateral triangle are same. So if one of the sides is (x-4.5), all the sides are (x-4.5).  

Let the sides are a=(x-4.5), b=(x-4.5), c=(x-4.5)

1. Perimeter(as sum) = a+b+c

                                   =  (x-4.5)+(x-4.5)+(x-4.5)

                                   = x+x+x-4.5-4.5-4.5

                                   = 3x - 13.5

2. Perimeter (as product) = 3×a    

                                    = 3×(x-4.5)

                                    = 3×x - 3×4.5

                                    = 3x - 13.5

(you can write 3×b or 3×c also as a=b=c.)

Both perimeter as sum and perimeter as product are same as adding a number three times is the same as multiplying it by 3.

Step-by-step explanation:

A Ferris wheel has an area of 50 square meters. Find
the radius of the Ferris wheel to the nearest meters.
Round the answer to the nearest whole meter.

Answers

Answer:

12

Step-by-step explanation:

A ferris wheel is 30 meters in diameter and boarded in the six o'clock position from a platform that is 10 meters above the ground. The wheel completes one full revolution every 10 minutes. At the initial time t=0 you are in the twelve o'clock

help??????? i’m no good at math

Answers

Answer:

-2(3/2x+5)>5(2x-2)+3x

The second option

Step-by-step explanation:

If you distribute the right side:

5(2x-2)+3x

10x-10+3x

You can combine 10x and 3x because they contain the same variable.

60 divided by 400 with the reminder

Answers

Answer:

405 iS the answers

✓✓✓✓✓✓

400 divided by 60 with the remainder is 6 remainder 40.

HELP HELP HELP ME PLEASE!! GIVING BRAINLIEST

Jim's lawn is a rectangle that is 15 5/6 yards long and 10 2/5 yards wide. Jim buys sod in pieces that are 1 1/3 yards long and 1 1/3 yards wide. How many pieces of sod will Jim need to buy and cover his lawn?

Answers

Answer:

Its 93

length of Jim's backyard , L = 15 5/6 = 95/6 yards

width of Jim's backyard , B = 10 2/5 = 52/5 yards

so, area of rectangular backyard = L × B

= 95/6 × 52/5

= (95 × 52)/30

= 494/3 yard²

Jim buys sod of length 1 1/3 = 4/3 yards and width = 1 1/3 yards = 4/3 yards .

so, area of rectangular sod = length × width

= 4/3 × 4/3 = 16/9 yard²

number of sod = area of backyard or area of sod

= (494/3)/(16/9)

= 494 × 3/16

= 92.625 ≈ 93

therefor, 93 pieces of sod will Jim need to buy to cover his backyard.

Answer:

I'm answering so you can give her brainliest

Step-by-step explanation:

rewrite 1/4 book 1/3 hour as a unit rate

a. 12 books/hour
b. 1 1/3 books/hour
c. 1/12 books/hour
d. 3/4 book/hour

Answers

Answer:

The Answer would be D. 3/4 Book/Hour

Step-by-step explanation:

You would flip 1/3 to 3/1 which makes it a whole number. Then multiply 1/4 and 3.

1/4 x 3 which gives you 3/4.

Hence, your answer is 3/4

3/4 books an hour Henry

a girl scout has (5x-12) boxes of cookies and sells (3x+18) of them. Write an expression to represent the amount of boxes she has left. i need help.

Answers

Answer:

2x - 30

Step-by-step explanation:

You have to subtract 3x + 18 from 5x - 12:

=> 5x - 12 - ( 3x + 18) = 5x - 12 - 3x - 18 = 5x - 3x - 12 - 18 = 2x - 30

The first step was to apply distributive properties to get rid of the parenthesis, after that the terms were arranged and the like terms combined

Answer = 2x - 30

(5x-12)-(3x+18)

Simplified becomes 2x-30

Brittany and Will each made a triangular sign with an area of 8 square feet. The base of Brittany's triangle is half as long as the base of Will's. How do the heights of the triangles compare?

Answers

Answer:

the length of Brittany's triangular sign is 1/2 the length of Will's

Step-by-step explanation:

The height of Brittany's triangle (h₁) is 2 times the height of Will's triangle (h₂).

How do the heights of the triangles compare?

Let's assume the height of Brittany's triangle is h₁ and the height of Will's triangle is h₂.

For Brittany's triangle:

A = ¹/₂b₁h₁ = 8

For Will's triangle:

A = /₂b₂h₂ = 8

We are also given that the base of Brittany's triangle is half as long as the base of Will's triangle

b₁ = ¹/₂b₂

Now, let's find the relationship between the heights of the triangles:

From the equations above, we can see that:

h₁ = 16 / b₁

h₂ = 16 / b₂

Recall; b₁ = ¹/₂b₂

h₁ = (2 x 16) / b₂

h₂ = 16 / b₂

So, the height of Brittany's triangle (h₁) is 2 times the height of Will's triangle (h₂).

Learn more about heights of triangle here: https://brainly.com/question/31719110

#SPJ3

Please hurry, i'm being timed!!!!!!

Multiplying performed on both sides of the equal sign, it is called:
A.) Division Property of Equality
B.) Timesing Property of Equalness
C.)Addition Property of Equality
D.)The answer is NOT here.

Answers

D the answer is not here!!!!! Hope th is helps
It’s d hope it helps

plz need help with this ASAP

Answers

i’m confused. what are you trying to find?

There were 5 horses and 10 cows on a farm. What is the ratio (in simplest form) of cow legs to horse legs on this farm?

Answers

2:1

10 cows x 4 legs each = 40 cow legs
5 horses x 4 legs each = 20 horse legs

40/20= 2:1, 2 cow legs to 1 horse leg
2:4

cows legs- 4 x 5=20
horses legs- 10 x 4 = 40
which is 40:20
simplified= 2:1

The radius of the first right circular cone is 6 cm, and its height is 8 cm. The radius of the second right circular cone is 4 times greater than the radius of the first cone. The height of the second cone is also 8 cm. How many times larger is the volume of the second cone?
A) 4
B)8
C)16
D)20

Answers

A or B hope this helps have a nice day
C hope that helps you alot!!

What is the evaluation to 4-(2)^3=?

Answers

Answer:

-4

Step-by-step explanation:

4-(2)^3

2^3= 8

4-8=-4

ps don't click on links the bentley kid has been leaving the same ones everywhere be safe

Answer:

-4

Step-by-step explanation:

Well since this is evaluation the use of PEMDAS is important

4-(2)^3(first you do exponents)

4-8(since 2x2x2=8)

4 - 8=

-4

There you go! Hope it helped!

Which product is negative? −6⋅(−7)⋅(−8)⋅0 −3⋅(−2)⋅(−4)⋅(−7) −2⋅(−7)⋅12⋅(4) 4⋅(−9)⋅(−3)⋅(−1)

Answers

Answer:

Last choice

Step-by-step explanation:

To say it simply if products are in negative or not, we can tell by:-

Looking at negative symbolsThen count how many negative signs are there.If there are even-number signs (2 negative signs, 4 negative signs, etc.) then the product is positive.If there are odd-number negative signs (a negative sign, 3 negative signs, 5 negative signs, etc.) then the product is negative.

The only choice that has odd-number negative signs is last choice — othere have 2 or 4 negative signs.

Additionally, keep in mind that:-

positive • positive = positivepositive • negative = negativenegative • negative = positivesame signs multiply each others = same signopposite signs multiply each others = negative (For plus and minus)

Above are important fundamental to Algebra and many mathematic courses so you better remember it!

Let me know if you have any questions regarding this topic and I will answer all your doubts!

The answer is D


4 x (-9) = -36 x (-3) = 108 x (-1) = -108
Making the last answer the only befit I’ve outcome

What is 12 x 7/8 simplified

Answers

Answer:

21/2, decimal form would be 10.5, mixed form is 10 1/2

Step-by-step explanation:

if you’re solving it as a fraction, it’s 3x^7/2 but if you’re solving it through PEMDAS, it’s 10.5

The image shows the linear graph for a family that hired a babysitter for a day. The family gave the babysitter some money up front to buy herself some lunch, and then paid her a constant hourly rate for the hours she worked. Click the thumbnail image to see the full size image.


Which 2 of the following statements are TRUE about the EQUATION of this line? Select the TWO statements that are accurate.

A. The equation of this line is y = 10x + 10.

B. The equation of this line is y = 20x.

C. The equation of this line shows a proportional relationship between the cost and the time.

D. The equation of this line shows a non-proportional relationship between the cost and the time.

Answers

Answer:

A & C

Step-by-step explanation:

If you look at the graph you will see what I am talking about.

Answer:

A and C

Step-by-step explanation:

y=10x(ten dollars per hour-x)=10(the lunch money)

the equation is a proportional relationship because for each hour there is a raise of ten dollars. proportional relationships are when one variable is a constant value times another(10 times the hour)

v- 2.3 = 8.84 what does the V stand for?

Answers

Answer:

If you mean the value of V then 11.14

Step-by-step explanation:

v-2.3=8.84

Add 2.3 to both sides to leave the variable alone so

v=11.14

I don't get this one either

Answers

Answer:

fist of all it's no she won't be able to complete the book

Step-by-step explanation:

a) no
b) 60 mins and 14 secs

please i need someone to help me

Answers

Answer:

Yes Felix would save money by switching gyms,

Step-by-step explanation: because 4 weeks per month times 30 dollars a week which is 120 dollars plus 150 dollars would be 270 dollars a month which is more than 255

Solving Multi-Step Equations (Triangle equations) Questions in image.

Answers

Answer: Dont it

Dont get it

Step-by-step explanation:

Soory but we dont get it

Help please I really need this due today and this is timed ;-;

Answers

Answer:

-9

Step-by-step explanation:

27 divided by 9 equals 3 and the ^2 is 3x3 Which equals 9 and then the negative comes

Answer:

-9

Step-by-step explanation:

In this, you should use PEMDAS, parentheses, exponents, multiplication, division, addition, subtraction. It is the order of solving any equation. The first thing you should start with is the parentheses. -27/9 is -3. Since exponents come next, you would do -3 x -3, which equals 9. After that, all that is left is a negative sign being multiplied to 9 (which is in the parentheses still. The negative sign times 9 equals -9. Therefore, your answer is -9. You could check through just in case, but I hope its correct. Also, if you don't mind, could you mark brainliest? I would really appreciate it :D

Which number sentence represents the Associative Property of Addition?


22 + 3 = 25
22 + 3 = 25

0 + 90 = 90
0 + 90 = 90

18 + 7 = 7 + 18
18 + 7 = 7 + 18

4 + (1 + 11) = (4 + 1) + 11

Answers

What is Associative Property of Addition?

According to the Associative property of Addition, when 3 or more numbers are added, the result (sum) remains the same even if the numbers are grouped in a different way. Here, grouping is done with the help of brackets.

This can be expressed as, a + (b + c) = (a + b) + c.


So, according to this the answer is 4 + (1 + 11) = (4 + 1) + 11.


Hope my answer helps you✌️

Mark BRAINLIEST

Uma concessionária anunciou um automóvel com um financiamento “taxa zero” por R$ 68.000,00, valor que pode ser pago em doze parcelas iguais e sem entrada. Para efetivar a compra parcelada, no entanto, o consumidor precisaria pagar R$ 3.400,00 referentes a despesas extras. Dessa forma, em relação ao valor anunciado, qual é o percentual de acréscimo que o comprador pagará?


7%

5%

12%

Answers

12% hope this helps!

Mason purchased 5 pints of ice cream for a party. If each guest will be served exactly 3/4 pint of ice cream, what is the maximum number of guests Mason can serve?

Answers

Answer:

6 and have 2/4 pint of ice cream leftover

Step-by-step explanation:

20/4

3,6,9,12,15,18

3,735 ÷ 45 = ________.

Answers

Answer:

83

Step-by-step explanation:

3735/45=83, 83x45=3735

Marlye posted a story on her blog. On the first day there were 80 responses and on the second day there were 180 responses. What percent is the increase, 100, of the original number of responses, 80?
a. 55%
b. 80%
c. 100%
d. 125%

Answers

100/80 = 1.25 or 125%

the answer is D-125%
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