Mathematics Middle School

9.
Pentagon ABCDE is similar to pentagon RSTUV. The perimeter of pentagon ABCDE is 36.8 centimeters.


What is the length of ST ?
18 cm
25.8 cm
15 cm
19.8 cm

Answers

Answer 1

Answer:

15cm

Step-by-step explanation:

Since BC is like ST but smaller, we have to find the length of BC then find the proportion for ST.

Length of BC = 36.8 - 4.4 - 13.2 - 2.2 - 11

                      = 6

Scale = [tex]\frac{33}{13.2}[/tex]

Length of ST = [tex]\frac{33}{13.2}[/tex] × 6

                      = 15

Answer 2

The length ST of the pentagon RSTUV is 7.36 centimeters.

What is pentagon?

A polygon with 5 sides is a pentagon. The total sum of the internal angles of a pentagon is 540°.

Given is that Pentagon ABCDE is similar to pentagon RSTUV.

Since the pentagon ABCDE is similar to the pentagon RSTUV, we can conclude that the perimeter of the pentagon ABCDE is similar to that of pentagon RSTUV. Now, the sides of the pentagon are equal in length. So, we can write that -

ST = Perimeter/5

ST = 36.8/5

ST = 7.36

Therefore, the length ST of the pentagon RSTUV is 7.36 centimeters.

To solve more questions on Pentagons, visit the link-

https://brainly.com/question/17054992

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Related Questions

Jason wants to plant 66 carrot seeds and 44 onion bulbs. He would like to plant them so
that there are the same number of plants in each row and each row only has one type of plant. a. What is the greatest number of plants he can have in each row? SHOW YOUR
WORK

Answers

Answer:

Step-by-step explanation:

Since we need an equal amount plants in each row, you have to find the greatest common factor (GCF) of 66 and 44.

The factors of 44 are: 1, 2, 4, 11, 22, 44

The factors of 66 are: 1, 2, 3, 6, 11, 22, 33, 66

Therefore, the greatest factor of 66 and 44 is 22. This means Jason will have 3 rows of carrot plants and 2 rows of onion plants. Each row will have 22 plants.

Jason can have a maximum of 22 plants in each row. This allows him to place 22 onion bulbs or 22 carrot seeds in each row.

We need to determine the greatest common divisor (GCD) of 66 and 44 to determine the maximum number of plants Jason can have in each row while still adhering to the requirements of having the same number of plants in each row and each row having only one type of plant.

The GCD denotes the maximum number of plants he is permitted to place in each row.

Using the Euclidean algorithm to find the GCD:

1. Divide the larger number by the smaller number:

66 ÷ 44 = 1 with a remainder of 22.

2. Divide the smaller number 44 by the remainder 22: 44 ÷ 22 = 2 with no remainder.

3. Since there is no remainder, the GCD is the divisor in the last division, which is 22.

To learn more about Euclidean algorithm link is here

brainly.com/question/34476426

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Please explain how to do this to me! DO NOT GIVE ME THE ANSWER AGAIN DO NOT!! Thanks :)

Answers

Answer:

Answer is -1.25

Step-by-step explanation:'

You start by making sure everything in the problem is a decimal which means turning 1 1/4 into 1.25 and then adding the two numbers together -2.5+.25=-2.25

-2.25+1=-1.25

Brainliest would be nice.

Answer:  -3.125  or  -25/8

Step-by-step explanation:

I do not know what has been covered in your class, but the "x" appears to be multiplication here.

It would be best to convert into all decimals or all fractions.

For all fractions (I think is easiest):

-2.5  is -2  1/2 = -5/2   and then 1  1/4  = 5/4  (need improper fractions to multiply, then multiply straight across)

Then take -5/2  *  5/4  = -25/8    (multiply fractions by multiplying numerators together, then denominators together).  If you need this as a mixed number, -25/8  is    -3  1/8

For all decimals:

-2.5 is already as a decimal,  then 1  1/4  = 1.25

So then multiply:

1.25     (I put 1.25 first because it has more digits)

x -2.5   (note- multiplying a positive by a negative gives you a negative)

   

 6  2 5     (multiply 5x5 first, giving 25, so place 5 and carry the 2,

                  then multply 5x2 = 10 plus the 2 carried is 12, carry that 1

                 then 5x1 = 5  plus the 1 carried is 6)

+  2  5 0 0   (0 placeholder first, now multiply the 2 by each digit of 1.25,  

                   2x5 = 10, carry the 1, then multiply 2x2 = 4  plus the 1 carried

                     is 5,  then multiply the -2 by the 1 ,  -2x1 = -2)

 Now add the 625 + 2500 = 3125, there were 3 digits after the decimal originally, so move decimal back 3 places, giving 3.125.  Finally, the answer is negative because you multiplied a negative number with a positive one.  SO the final answer is -3.125   (also equal to the -25/8)

                       

This expression involves two numbers written in scientific notation.

Which is the simplified form of the expression?

Answers

Answer: the answer for it would be 20000 or should be

Step-by-step explanation:

4.2e7/2.1e3 should come out to 20000 at least my graphing calc says it should but it should come out to 20k

The answer is 20,000 explain the answer
4.2/2.1 x 10 little 7/10 little 3 = 4.2/2.1 x 10 little 4 = 2 x 10 little 4 = 2x 10000= 20,000
I hope it helps:)

The 5 cheerleaders at Creekwood Middle School want to earn money to buy new uniforms. They need a total of $2500. A local business donated $1281.25 towards the cost of the uniforms. If each cheerleader earns the same amount, how much more money must each cheerleader earn?

Answers

Answer:

243.75 each

Step-by-step explanation:

2500-1281.25=1218.75

1218.75/5=243.75

hope this helps :)

2500-1281.25=1218.75/5=243.75

Harry made a scale drawing of the elementary school. The schoolyard, which is 154 meters long in real life, is 22 millimeters long in the drawing. What scale did Harry use?
1 millimeter : __ meters

I'm sorry that there is no picture or drawing

Answers

Answer:

Based on the information given, the scale

that's used by Harry for drawing the schoolyard will be 1:7000.

Firstly, it should be noted that

meter = 1000 milliliters

Therefore, 154 meters = 154,000

millimeters

Since the schoolyard is 154 meters long in real life but is 22 millimeters long in the

drawing, then the scale will be:

= 22/154000

= 1/7000

77 meters this is correct trust. My word dog

You work two jobs in the winter. You babysit for your neighbor, making $6 per hour, and you clear snow from driveways, making $10 per hour. You want to buy the latest X-Box ™ that costs $500. Write an equation that represents how you can earn enough money to buy the latest X-Box ™.
SECOND PART
Describe two ways that you can earn enough money to buy the latest X-Box ™. Show calculations that prove your two ways are viable answers
I HAVE NO CLUE HOW TO DO THIS PART

Answers

Answer:

( 6 x 12 + 10 x 8 ) = 200 + 10 x 30 = 300

Step-by-step explanation: babysit for 12 hours

clear snow for 38 hours not all in the same day but still

Yah that’s rightttttttttttttttttttttttt

Factor the trinomial, and solve the equation first.

[tex]x^{2}[/tex] - 2x - 2

Answers

Answer:

The trinomial is not factorable with rational numbers but can be answered using the quadratic formula : (-b±√(b^2-4ac))/2a. The answer would be 1 ± (plus or minus) [tex]\sqrt{3} \\[/tex] (radical 3).

Step-by-step explanation:

I recommend studying the quadratic formula and remembering it. It can ALWAYS be used to solve any quadratic, rationally factorable or not. When in doubt with completing the square or factoring, fall back on the quadratic equation.

So here is what i got from your whatever but yeah tried to help✌️

i need help ASAP!!!!!!!!!!!!!!!!!!​

Answers

A=81
Hope I’m right did the math real quick while doing a test good luck

Consider the rational number 3/11 (A What are the values of a and b in a)‾b when you use divisison to find the decimal form?

Answers

Answer:

The decimal form of this rational number is .

Step-by-step explanation:

a) Let  a rational number. From statement we understand that  represents the numerator, while  corresponds with the denominator of the rational number. Hence,  is 3 and  is 11.

b) The decimal form is obtained by dividing  by , we presented the step needed to determine the decimal form:

i) Multiply the numerator by 10:

Dividend: 30/Divisor: 11/Known result: 0. /Residue: N/A

ii) Multiply the divisor by 2 and subtract from the dividend:

Known result: 0.2 /Residue: 8

iii) Multiply the residue by 10:

Known result: 0.2 /Residue: 80

iv) Multiply the divisor by 7 and subtract from the residue:

Known result: 0.27 /Residue: 3

v) Multiply the residue by 10:

Known result: 0.27 /Residue: 30

vi) Multiply the divisor by 2 and subtract from the residue:

Known result: 0.272/Residue: 8

vii) Multiply the residue by 10:

Known result: 0.272 /Residue: 80

viii) Multiply the divisor by 7 and subtract from the residue:

Known result: 0.2727/Residue: 3

We have notice that the decimal form of  is a periodical decimal number. Hence, we conclude that decimal form of this rational number is .

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what is the root of 9 over 64

Answers

Answer: Exact Form:

3

8

Decimal Form:

0.375

Step-by-step explanation:

Answer:

The answer is 3/8 = 0.375

Step-by-step explanation:

We have

[tex] \sqrt{ \frac{9}{64} } [/tex]

[tex] = \sqrt{ \frac{ {3}^{2} }{ {8}^{2} } } [/tex]

[tex] = \frac{3}{8} [/tex]

[tex] = 0.375[/tex]

Joan's father is 38 years old today. How many days old is he? (Note: don't add any days for leap year, just count each year as 365 days.) Explain how you got your answer.

Answers

Answer:13870

Step-by-step explanation: 38 years old

1 year has 365 days

365 days x 38 years = 13870 days old

13870,just multiply 38 by 365

Solve the equation:
Evaluate -3.28 - (-4.4) +(-p) where p = 9.7

Answers

Answer: 10.32

Step-by-step explanation:

First, we write down the question.

-3.28 -(-4.4) + (-p)

Next, we substitute p = 9.7

-3.28 -(-4.4) + (-9.7)

Finally, we solve the integers and solve.

-3.28 +4.4 -9.7

-3.28 + 14.2

10.32

Hope this helps!!

P.S My answer could be wrong lol

Answer:

10.82

Step-by-step explanation:

-3.28-(-4.4)+(-9.7)

-3.28+4.4+(9.7)

1.12+9.7

10.82

You use a stain remover on two separate stains on a shirt. Design and use a simulation to find the experimental probability that the stain remover removes both the mud stain and the food stain. Probability of Stain Removal Mud 90% Food 80%

Answers

Answer:

you would have to get 2 shirts with stains with stain remover and test it

Step-by-step explanation:

Answer:ابالواغودقذزرقق#دريد زسسدييبذثثهعغف

Step-by-step explanation:قفالبيللالفل

can someone help me with this

Answers

the answer would be -14 pemdas yk
it would be -14! glad I could help you!

For the student council meeting after school, Mr. Aggie brought 3 loaves of homemade raisin bread. Each loaf was cut into ten equal pieces.

The sixth grade students ate one whole loaf and 4 slices of raisin bread. The seventh grade students ate 9 slices of raisin bread. The eighth grade students ate 6 slices of raisin bread.

Which expression below can be used to show the amount of raisin bread eaten by the student council members?

A. 4 + 9 + 6
B. 4/10 + 9/10 + 6/10
C. 1 4/10 + 9/10 + 6/10
D. 3/10 + 1 4/10 + 9/10 + 6/10

Answers

The answer is c. 14/10 +9/10 +6/10 . Because each slice is cut into 10 pieces the six graders at 1 whole loaf which was 10 pieces plus 4 pieces of another loaf so add that up
Its 14 and then seventh graders at 9 slices out of 10 and the eighth graders at 6 slices out of 10

Which correctly shows the inequality x < 6?

Answers

Answer:

A

Step-by-step explanation:

x<6, so x can't be 6. Also, the arrow has to point to the left of 6 since x<6.

The correct answer is A since “<“ means less than

WORTH 50 POINTSSSSSSSSSSSSSSSSSSSSSSSSSSS!!!!!!!!!!!!!!!!!!!!!!!! which shows the best use of associative and commutative properties to make simplifying 3/4-5+9-2/4+2 easier A. [3/4(-2/4)} + [9+2+(-5)]
B. [3/4+(-5)] + {9+(-2/4) +2] C. 2+ 3/4 + (-5)] + [(-2/4) +9] D. [3/4 +9+ (-5)] + {2+(-2/4)}

Answers

A. There is no come one answer for this question ABC
the answer is for the question is: A

Evaluate: 75 − 21 × 2 − (3 + 7)

Answers

Answer:

23

Step-by-step explanation:

23.

Have a good day love!

-3 2/7 -(2 2/3) can someone please help me

Answers

Answer:-125/21 or -5 20/21


Steps:

First, change the mixed numbers to improper fractions.

So -3 2/7 = -23/7
2 2/3= 8/3

Second, make the denominators the same number

So multiply -23/7 by 3 and 8/3 by 7

-69/21-56/21

Subtract the numerators

-69-56= -125

So the answer is -125/21 or -5 20/21
125/21 that’s the answer to your problem

Which of the following expressions are equivalent to minus, start fraction, 2, divided by, minus, 13, end fraction?

I will give Brainliest to whoever answers the best!

Answers

Answer:

Step-by-step explanation: The equivalent expression will be (-2)/ (-13) and-(-2/13) so option (A) and option (B) both will be correct. In such a fraction, the value that appears above the horizontal line is referred to as the numerator. It represents the number of pieces removed from the whole.

The denominator of a fraction is the numerical value that comes before the brings together various.

If we divide two numbers by each other than the upper word is called the numerator, and a lower word is called the denominator. For example, a fraction 1/5 here 1 will be the numerator and 5 will be denominated.

Given that now since the multiplication of - and - quantity is always positive so - and - is positive so it will be 2/13

If you take both options A and B in both options, the negative sign is going to be canceled and it will give a positive value.

Hence "The equivalent expression will be (-2)/ (-13) and-(-2/13)".

Step-by-step explanation: The equivalent expression will be (-2)/ (-13) and-(-2/13) so option (A) and option B) both will be correct. In such a fraction, the value that appears above the horizontal line is referred to as the numerator. It represents the number of pieces removed from the whole.
The denominator of a fraction is the numerical value that comes before the brings together various.
If we divide two numbers by each other than the upper word is called the numerator, and a lower word is called the denominator. For example, a fraction 1/5 here 1 will be the numerator and 5

25 students were randomly sampled about their favorite class,
Math=18 students
Science=2 students
English=2 students
Other=3 students
Predict the number of students in an entire school of 300 students whose favorite subject is math.

Answers

Math = 18/25 = 0.72 = 72%

300 x 0.72 = 216 students

Please Solve These.
Please Explain don't just give me the answers :)

Answers

Answer:

Step-by-step explanation:

For cullen he did the first part wrong:

-6n +22 =-4n + 14

+4n          +4n

---------------------------

-2n+22=14  correct solution

not equal to -10n +22=14

=======================================

for Seraphina she did the 3rd part wrong:

11.6y = 23.2

------     ------

11.6      11.6

y=2 correct solution

not equal to y=11.6

=========================================

for Jasper he also did the 3rd part wrong:

1/8b= 64

x8      x8

b=512 is the correct answer

not equal to b=8

Hope this helps :)

16 18 19 20 21 22 24 26 28 30

Pls help ASAP thanks and I will give brainlest

Answers

5) B
6) C
7) D
8) A
9) B
10) C
5) c
Ill add the rest in a minute

3x+5=29-9x

Solve x. Pls show your working

Answers

Answer:

x=2

Step-by-step explanation:

[tex]\mathrm{Subtract\:}5\mathrm{\:from\:both\:sides}[/tex]

3x+5-5=29-9x-5

[tex]\mathrm{Simplify}[/tex]

3x=-9x+24

[tex]\mathrm{Add\:}9x\mathrm{\:to\:both\:sides}[/tex]

3x+9x=-9x+24+9x

[tex]\mathrm{Simplify}[/tex]

12x=24

[tex]\mathrm{Divide\:both\:sides\:by\:}12[/tex]

[tex]\frac{12x}{12}=\frac{24}{12}[/tex]

[tex]\mathrm{Simplify}[/tex]

x =2

Answer:

x = 2

Step-by-step explanation:

1) Reorder the terms

3x + 5 = 29 - 9x
3x + 5 = -9x + 29

2) Subtract 5 from both sides


3x + 5 - 5 = -9x + 29 - 5

3x = -9x + 24


3)  Add 9x to both sides

3x + 9x = -9x + 9x + 24

12x = 24


4) Divide both sides by the same factor

12x/12 = 24/12

x = 2

A hospital ordered 4 boxes of cotton swabs. There were 71 cotton swabs in each box. How many cotton swabs did the hospital order in all

Answers

Answer:

284 you multiply the numbera

Step-by-step explanation:

71×4=284

284 is your answer I’m pretty sure.

Find 2 1/4 divided 3/8. Show your work (Simplify)

Answers

Answer: 6
First, we convert 2 1/4 into an improper fraction. So 9/4
Next, we multiply 9/4 to the reciprocal of 3/8 : 9/4•8/3= 72/12= 6/1
Conversion a mixed number 2 1/
4
to a improper fraction: 2 1/4 = 2 1/
4
= 2 · 4 + 1/
4
= 8 + 1/
4
= 9/
4


To find a new numerator:
a) Multiply the whole number 2 by the denominator 4. Whole number 2 equally 2 * 4/
4
= 8/
4

b) Add the answer from previous step 8 to the numerator 1. New numerator is 8 + 1 = 9
c) Write a previous answer (new numerator 9) over the denominator 4.

Two and one quarter is nine quarters
Conversion a mixed number 1 3/
8
to a improper fraction: 1 3/8 = 1 3/
8
= 1 · 8 + 3/
8
= 8 + 3/
8
= 11/
8


To find a new numerator:
a) Multiply the whole number 1 by the denominator 8. Whole number 1 equally 1 * 8/
8
= 8/
8

b) Add the answer from previous step 8 to the numerator 3. New numerator is 8 + 3 = 11
c) Write a previous answer (new numerator 11) over the denominator 8.

One and three eighths is eleven eighths
Subtract: 9/
4
- 11/
8
= 9 · 2/
4 · 2
- 11/
8
= 18/
8
- 11/
8
= 18 - 11/
8
= 7/
8

For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of both denominators - LCM(4, 8) = 8. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 4 × 8 = 32. In the following intermediate step, it cannot further simplify the fraction result by canceling.
In other words - nine quarters minus eleven eighths is seven eighths.

I NEED ANSWERS QUICKLY PLEASE HELP!!! (I WILL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST WITH THE CORRECT ANSWER!!!)

f(n)=-3n-1
Given this explicit equation, what is the common difference?

Answers

The answer is +=3+_ on-1

3 = x/36

Solve x. Show working

Answers

Answer:

[tex] \sf \: x=108[/tex]

Step-by-step explanation:

3=x/36

Step 1: Multiply both sides by 36.

3=x/36(3)*(36)=(x/36)*(36)

108=x

Step 2: Flip the equation.

x=108

x=108 because
36•3= 36• x/36
36•3=x
108=x
x=108

More help please! Giving 10 points for this :)

Answers

I can’t see it, what does it say?
So for the first one, you want to look at the ratio;
1 cm : 2 m and 1 cm : 4 m
This means that for every 2 meters you would draw one centimeter, or every 4.
Drawing B is the larger drawing because it uses a larger number of meters.

The second one is almost like the first, except for every 10 meters you draw 1 centimeter. 50 divided by 10 is 5 and 25 divided by 10 is 2.5 These are the centimeters.
Draw 5 cm for the length and 2.5 cm for the width.

I NEED ANSWERS QUICKLY PLEASE HELP!!! (I WILL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST WITH THE CORRECT ANSWER!!!)

f(n) = f(n-1)+5, f(1)=-3
Given this recursive equation, what is the common difference?

Answers

Answer:-15n?????

Step-by-step explanation:

Answer: The answer is -3N=-8

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