Mathematics High School

Solve the proportion.
7
b
21
18
b = [?]

Answers

Answer 1

Answer:

b = 6

Step-by-step explanation:

here's your solution

=> 7/21 = b/18

=> by cross multiplication

=> 21b = 7*18

=> b = 126/21

=> b = 6

hope it helps

Answer 2

Answer:

b = 6

Step-by-step explanation:

To find the answer, find the GCF of 7 and 21, which is 7, and divide it by 7/7 to get 1/3, now the equation is 1/3 = b/18. How many times does 3 multiply to get 18? 6, multiply the first side of the equation by 6/6 to get 6/18, now we have 6/18 = b/18, since they are the same, b = 6

Related Questions

Find the volume of a cone with a height of 12m and a base diameter of 10m. Use the value 3.14 for π, and do not do any rounding. Be sure to include the correct unit in your answer.

Answers

314

Yes Yes Pog Pog Pog Pog Pog Pog

The distance from Kim's house to NYC is 100 miles more than the distance from her house to LA. If the sum of the distances is 3,000 miles, how far is it from Kim's house to New York City?

Please help and show how you solved it!!

Answers

Answer:

1550miles

Step-by-step explanation:

assume her house to LA has x miles, therefore her house to NYC is x+100miles

x+x+100=3000

2x=2900

x=1450

x+100=1550miles

What is the slope of the line that contains the points (-1, 2) and (4,3)? O A. - 1/3 O B. 011 O c. 5 O D. -5

Answers

Answer:

1/5

Step-by-step explanation:

Answer:

-3/19

Step-by-step explanation:

Given data

We have the coordinates

(-1, 2) and (4,3)

x1=-1

y1=2

x2=4

y2=3

The expression for the slope is given as

Slope= y2-y1/x2-x1

Substiute

Slope= 3-2/4-(-1)

Slope= 1/4+1

Slope= 1/5

Hence the slope is 1/5

5x + 13 = 7
Solve for x

Answers

Answer: x=−6/5

Step-by-step explanation: Hope this help :D

Answer:

-1.2

Step-by-step explanation:

5x+13=7

5x= -6

x=-6/5 or -1.2

i dont understand this

Answers

Didn’t pass - studied = 3
Pass - studied = 23
Didn’t pass - studied = 4
Didn’t pass - didn’t study = 2

3 800 millimeters expressed in metres is

Answers

Answer:

3.8 meters

Step-by-step explanation:

Answer:

hi sorry i just want points YOSHIII :3

Step-by-step explanation:

How to solve: 1/3 x 23,26 x 7

Answers

Answer:

54.27333333

Step-by-step explanation:

just put them all into a calculator and multiply them

1/3*23.26*7=54.27333333

Answer:

around 54.27

Step-by-step explanation:

Just multiply the numbers or change them to decimals (1/3 = 0.333 , 23.26, and 7 = 7.0)

1/3 * 23.26 * 7 = 54.273 (repeating)

60 cars to 24 cars what is the decrease percentage

Answers

Answer:

It decreased 60%

Step-by-step explanation:

TO figure this out we must first find 1% of 60

60/100 = .6

Now we find the difference between 60 and 24

60 - 24 = 36

Now that we know how much it decreased we must now find out what percent 36 is of 60.

.6 x 60 = 36

So 36 out of 60 is 60%

So it decreased 60%

(っ◔◡◔)っ ♥ Hope It Helps ♥

Please Consider giving Brainliest

Drag the slider to change the value of b and observe the effect of b on the graph of the sine function. 8 when b=0.5 ,the period of orange graph is 4 when b=2, the period of orange graph is 110 311 TE RETRY 8 y = sin(2) b=1 y = sin(1) 1) Intro

Answers

Answer: fist one is 4 & second one is 1

second set on questions are decreases & increases

Step-by-step explanation:

just took it

The periods when B = 0.5 and 2 are 4π and π, respectively

How to determine the period?

The period of a sine function is calculated using:

T = 2π/B

When B = 0.5, we have:

T = 2π/0.5

T = 4π

When B = 2, we have:

T = 2π/2

T = π

Hence, the periods when B = 0.5 and 2 are 4π and π, respectively

Answers

Answer:

Step-by-step explanation:

because a doesnt make since it never said they were males

the answer is C) they are both 12 percent

What is the volume of this rectangular prism? 5/3cm 3/2cm 4/5cm

Answers

[tex] \huge\mathfrak\pink{S} \huge\mathfrak\purple{o} \huge\mathfrak\blue{l} \huge\mathfrak\red{u} \huge\mathfrak\green{t} \huge\mathfrak\pink{i}\huge\mathfrak\purple{o}\huge\mathfrak\red{n}\huge\mathfrak\orange{➔}\ [/tex]

length[l]=[tex] \frac{5}{3} cm[/tex]

breadth [b]=[tex] \frac{3}{2} cm[/tex]

height[h]=[tex] \frac{4}{5} cm[/tex]

now

volume of cuboid=l×b×h=[tex] \frac{5}{3} \times \frac{3}{2} \times \frac{4}{5} [/tex]

=2cm³is your answer.

Step-by-step explanation:

hope it is helpful to you

Which could a dilation result in? Select all that apply.
a figure getting smaller
a figure moving to the left
a figure flipping upside down
a figure getting larger
a figure turning about a point

Answers

Answer: a figure getting smaller, and a figure getting larger because its changing its size of the shape.

Hope it helps :)

Answer:

first and second to last one on 2021 edge :)

Step-by-step explanation:

Ruby is building a pentagon-shaped garden and a hexagon-shaped garden.

.the perimeter of the pentagonal garden is 47 1/2ft

.The perimeter of the hexagonal garden is 61 1/2ft

Witch statement is false about this scenario?

A) the equation to find the length of each side of the pentagonal garden is 6x=47 1/2

B) The length of each side of the pentagonal garden 9 1/2 ft

C) The equation to find the length of each side of the hexagonal garden is 6x=61 1/2

Answers

9514 1404 393

Answer:

Step-by-step explanation:

If x is the side length of the regular pentagon, the perimeter is the sum of its 5 side lengths: 5x. To find the side length, we can use the formula that sets this equal to the known perimeter:

5x = 47 1/2 . . . . . . mismatch with statement A

Statement A is false.

A template strand of DNA is 3' AACTGAACTTT } 5'

AACTGAACTTT 5

3, prime, start text, space, A, A, C, T, G, A, A, C, T, T, T, space, end text, 5, prime.

What is the complementary DNA strand that is created from this template during replication?

;[.[;'

?[;';/

(Choice A)

A AACTGAACTTT }3'5

AACTGAACTTT 3

5, A, A, C, T, G, A, A, C, T, T, T, space, end text, 3, prime

(Choice B)

B

5'\text{ TTGACTTGAAA } 3'5

′

TTGACTTGAAA 3

′

5, prime, start text, space, T, T, G, A, C, T, T, G, A, A, A, space, end text, 3, prime

(Choice C)

C

5'\text{ UUGCAUGAAA }3'5

′

UUGCAUGAAA 3

′

5, prime, start text, space, U, U, G, C, A, U, G, A, A, A, space, end text, 3, prime

(Choice D)

D

5'\text{ GGTCAGGACCC }3'5

′

GGTCAGGACCC 3

′

Answers

Answer:

Step-by-step explanation:

Answer:5

′

ATGGCTAACGT 3

′

Step-by-step explanation:

The question is asking if the following pairing is accurate

′

TACCGATTGCA

′

TACCGATTGCA 5

′

3, prime, start text, space, T, A, C, C, G, A, T, T, G, C, A, space, end text, 5, prime

′

ATGGCTAACGT

′

ATGGCTAACGT 3

′

5, prime, start text, space, A, T, G, G, C, T, A, A, C, G, T, space, end text, 3, prime

Each nucleotide is appropriately paired according to the A-T/C-G pairing rules, so these are complementary strands.

Jada’s lawn mowing service charges $28 an hour plus a $20 fee to cover gas for the mower. Mai’slawn service charges $16 an hour, but a $44 fee. For how many hours will Jada’s service be cheaper than Mai’s?

I need the answer pretty quick plsss

Answers

Answer:

Jadas for 4 hours

Step-by-step explanation:

28+20=48

16+44=60

60 x 4 = ?

48 x 4 = ?

Overall Jada's plan is cheaper!!!!!1

Have a great day! Hope this helps!!!!!!!!!!

Use soh-cah-toa to find the angle of Pin degrees. help me plzzzz

Answers

Answer:

16.9275130641

Step-by-step explanation:

\tan^{-1}\left(\frac{7}{23}\right)

A school group is raising money for a trip. The group needs $450 for travel and $325 for food. They have 6 weeks to raise money selling $1 candy bars.
What is the least number of candy bars the group needs to sell each week to afford the trip?

Answers

Answer:

Step-In total, the amount of money they will need to raise is:

= 450 + 325

= $775

by-step explanation:

They have 6 weeks to raise this money so the amount they have to raise per week is at least:

= 775/6

= $130

The candy bars cost $1 each. They will therefore have to sell a minimum of 130 candy bars each week to afford the trip.

How many students chose snap?

Answers

Answer:

Well 40% of 120 is 48 so 48 students

Step-by-step explanation:

help i dont what to do

Answers

Answer:

area=breadth* height

2*9

Calcular la velocidad de propagación de una onda que tiene una frecuencia de 60Hz y una longitud de onda de 0.2 m

Answers

Respuesta:

12 m / s

Explicación paso a paso:

Dado :

Frecuencia de onda = 60 Hz

Longitud de onda = 0,2 m

La velocidad de propagación de la onda viene dada por:

Velocidad = frecuencia * longitud de onda

Velocidad de propagación de la onda = 60 * 0,2

Velocidad de propagación de la onda = 12 m / s

5÷
2
1
plz, help!!!!!!!!!!!!!!!

Answers

Answer:

5÷ 21 = 0.23809523809

Can a genius help me give 10 points and Brainlist

Answers

Answer:

Slope is -3/2

Step-by-step explanation:

For each expression below, write an equivalent expression by applying the distributive property.
1. 2(12p-6w + 7y)
2. 1/4(32h + 64)
3. 6(9m-8)

Answers

Answer:

1. 24p-12w+14y

2. 8h+16

3. 54m-48

Step-by-step explanation:

sorry if it is wrong

Beyunka has six baseballs that she keeps at her grandparents’ house. That number represents 20% of the baseballs that come in a case. The relationship is shown in the tape diagram below. What is the total number of baseballs that come in a case?

Help

Answers

Answer:

30 is the total number of baseballs that come in a case

Paulina is going to give away some
stickers to her friends. She can
give an equal number of stickers
to 2, 3, or 5 people. Which number
of stickers could Paulina have?
A. 55
B. 60
C. 66
D. 70

Answers

The answer to this would be D

What is the square root of -1?

Answers

Answer:

Step-by-step explanation:

B, i

The answer would be -1

Mary bought a desk on sale for 88.40. This price was 74% less than the original price.
What was the original price?

Answers

Answer:

p = $340

Step-by-step explanation:

Let p represent the original price. Then the amount Mary paid was (100% - 74%) of the original price: 0.26p = $88.40.

Solving for p: p = $340

Check: what is 74% of $340? $251.60. Subtracting this from $340, we get $88.40. This agrees with the problem statement.

A suitcase is a rectangular prism whose dimensions are 1 1/4 feet by 1 1/2 feet by 2 1/4 feet.Find the volume of the suitcase.

Answers

Answer:

The answer is "[tex]\bold{\frac{135}{32}}[/tex]".

Step-by-step explanation:

[tex]Volume= length \times width \times height\\\\\to 1\frac{1}{4}= \frac{5}{4}\\\\\to 1\frac{1}{2}=\frac{3}{2}\\\\\to 2\frac{1}{4}=\frac{9}{4}\\\\\to Volume= \frac{5}{4} \times \frac{3}{2}\times \frac{9}{4} = \frac{135}{32}[/tex]

Select the number that is a solution to the inequality t > 6.
A 2
B 6
C 5.2
D 6.01
E 0.6

Answers

Answer:

D. 6.01

Step-by-step explanation:

6.01 is greater than six.

Answer: D

Step-by-step explanation:

“>” means greater than. So, T has to be bigger than 6. 6.01 is bigger.

I need help with this questions

Answers

Answer:

Picture 1

Your choice C is correct

(x - (-2))² + (y - 9)² = 5² ⇒ (x + 2)² + (y - 9)² = 25

Picture 2

(x + 5)² + (y - 6)² = 36(x - (-5))² + (y - 6)² = 6²r = 6, (h, k) = (-5, 6)

Correct choice is C

Picture 3

(x + 5)² + (y + 2)² = 81(x - (-5))² + (y - (-2))² = 9²r = 9, (h, k) = (-5, -2)

Correct choice is C

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Solve the proportion. 7 b 21 18 b = [?]

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Solve the proportion.
7
b
21
18
b = [?]