Mathematics High School

Can somebody plz just tell me if I’m doing these ratios right. If I’m not plz put the correct answer thanks!!

WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DD

Can Somebody Plz Just Tell Me If Im Doing These Ratios Right. If Im Not Plz Put The Correct Answer Thanks!!

Answers

Answer 1

no you are actually doing really good keep it up

Answer 2

Answer:

Its right but you might wanna simplify 12, 15, 16, and 17

Step-by-step explanation:

Related Questions

Which of the following 1/6 is closest to?
1/2
1
0

Answers

Answer:

0

Step-by-step explanation:

its closer to 0 then 1/2 and its closer to 0 than 1

A band expects to put 15 songs on their next CD. The band writes and records 20% more songs than
they expect to put on the CD. During the editing process, 50% of the songs are removed. How many
songs will there be on the final CD?
There will be songs on the final CD.

Answers

Answer:

9 songs will be on the final CD

Step-by-step explanation:

The band writes and records 20% more songs than they expected to put on CD (they expected to put 15 on CD) , hence 3 more songs since 20% of 15 is 3 (= 15 × 0.20). A total of 18 songs is recorded.

During editing, 50% of the songs are removed, that is 9 (= 18 × 0.50).

Therefore, only 9 songs are left on CD (= 18 - 9)

The percentage is calculated by dividing the required value by the total value and multiplying by 100.

Required percentage value = a

total value = b

Percentage = a/b x 100

The number of songs in the final CD is 9.

What is a percentage?

The percentage is calculated by dividing the required value by the total value and multiplying by 100.

Required percentage value = a

total value = b

Percentage = a/b x 100

Example:

50% = 50/100 = 1/2

25% = 25/100 = 1/4

20% = 20/100 = 1/5

10% = 10/100 = 1/10

We have,

The number of total songs.

= 15 + (20% of 15)

= 15 + (1/5 x 15)

= 15 + 3

= 18

Now,

The number of removed songs.

= 50% of 18

= 1/2 x 18

= 9

The number of songs on the final CD.

= 18 - 9

= 9

Thus,

The number of songs in the final CD is 9.

Learn more about percentages here:

https://brainly.com/question/11403063

#SPJ5

Help
Please due now

Answers

Answer:

43

Step-by-step explanation:

2y+3(x-y) + x^2 =

10+3( 3-5) +3^2

Find an equation for the perpendicular bisector of the line segment whose endpoints
are (-8,7) and (4,3)

Answers

First let’s find the gradient of the perpendicular bisector.

If the gradient of the line segment is m, then the gradient of its perpendicular bisector is -1/m.

Gradient of line= (y2-y1)/(x2-x1) =
(3-7)/(4- -8) = (-4/12) = -1/3

Therefore the gradient of the perpendicular bisector is 3

The perpendicular bisector will pass through the midpoint of line segment.

Midpoint of line= ((x1+x2)/2 , (y1+y2)/2)
=( (-8+4)/2 , (7+3)/2) = (-2,5)

Equation of perpendicular bisector : y=mx + c.

We know m is 3

So we have:

y=3x+c

The bisector passes through (-2,5). Replace in equation to find c.

5 = 3(-2) + c

5 = -6 + c
c = 5+6 = 11

So equation if bisector is y = 3x + 11

Solve for y :3x-3y=12

Answers

Answer:x=4+y

Step-by-step explanation:

Answer:

y = -4 + x

Step-by-step explanation:

3x - 3y = 12

-3x           -3x

-3y = 12 - 3x

___________

        -3

y = -4 + x

Hope this helps!

Rewrite the equation in slope-intercept form. Then identify the slope and y-intercept.
a. 3x - 2y = 10

Answers

Answer:

Slope intercept form y= mx+b

y= 3/2x-5

slope= 3/2

y-int= -5

Step-by-step explanation:

match the vocabulary with its definition

prime number

composite number

prime factorization

factor tree
​

Answers

prime number = numbers greater than 1, they only have two factors. 1 and the number itself.

composite number = positive integer, multiplying two smaller positive integers.

prime fact. = finding what the prime numbers are and then multiplying them.

factor tree = pretty self-explanatory. all of the numbers spread out into a way so that you can multiply them. for example, (image attached). hope this helps!!

You earned a 90% on a math test you answered 18 questions correctly how many questions were on the test

Answers

Answer: 20

Step-by-step explanation:

18/20 %90

Solve the system by substitution.
y=6x
y=3x+21
( , )

Answers

Answer:

(7,42)

Step-by-step explanation:

Imput the 6x for the Y:

6x=3x+21

move the variable to the left

6x-3x=21

collect like terms:

3x=21

divide both sides by 3x and youll get this for X

x=7

Imput x=7 into the equation

Y=6x7

solve:

y=42

The length of a rectangle is ten units more than twice the width. The perimeter of the rectangle is 68 inches. What is the length?

Answers

Answer:

26

Step-by-sep explanation:

What is meant by the phrase "included side?"
The side between two angles in a triangle
The side between two other sides in a triangle
The side between an angle and a side in a triangle
The angle between two sides in a triangle

Answers

Answer:

the side between two angles in a triangle

The common leg of two angles. Usually found in triangles and other polygons, the included side is one that links two angles together. Think of it as being ‘included between two angles.

There are 150 adults and 245 children at a zoo. The zoo makes a total of $4,780 from the entrance fees,
and the cost of an adult and a child to attend is $23, how much does it cost each for a parent and a child?
Let a represent an adult.
Let c represent a child.
Enter a system of equations to represent the situation, then solve the system.
The
system of equations is
and
The adult tickets cost $
and the child tickets cost $

Answers

Answer:

the entrance fee per parent is $25, while the cost per child is $6.

Jordyn saved $75 in two months. If Jordyn continues saving at this rate, how much will she have saved in 12 months?$_________ *

Answers

Answer:

1,875

Step-by-step explanation:

75x25=1,875

What is the sum of 3x + 2y - z and -5x + 7y + z

Answers

Answer:

-2x + 9y

Step-by-step explanation:

(3x+2y-z)+(-5x+7y+z)

3x+2y-z-5x+7y+z

-2x+9y

Answer:

you would have add the x z

Step-by-step explanation:

add that first then do the numbers

Please help!! 15 Points!!!!

Answers

Answer:

I think it is ether A are B

Answer: 1 solution

Step-by-step explanation: 3(

7

3

x+

4

3

)−2x+8=5x+12

all numbers are are solutions

Marcus and Lara each have the same number of songs on their ipods. Marcus has 10x + 8 songs and Lara has
15x - 92 songs. What is x?

Answers

Answer:

The value of x is 20.

Step-by-step explanation:

Given that

Number of songs Marcus has = 10x+8

Number of songs Lara has = 15x-92

It is also given that they have the same number of songs that means both the expressions should be equal.

Putting both equal

[tex]10x+8 = 15x-92[/tex]

This is a linear equation in one variable which can be solved using properties of equality

Subtracting 10 from both sides

[tex]10x+8-10x = 15x-92-10x\\8 = 5x-92[/tex]

Adding 92 on both sides

[tex]8+92 = 5x-92+92\\100 = 5x[/tex]

Dividing both sides by 5

[tex]\frac{5x}{5} = \frac{100}{5}\\x = 20[/tex]

Hence,

The value of x is 20.

There are 4 breakfast choices in a school cafeteria: Cereal, Granola Bar, Breakfast Sandwich, and Fruit. The percentage of students that chose cereal is 20%. If 60 students chose cereal, what is the total number of students that ate breakfast?
A.
120
B.
300
C.
320
D.
360

Answers

Answer:

300. In this case, it's very easy to do this percentage inflation. Since 20 is a multiple of 100, and we want to know the 100%, you just multiply the 20 by 5 to make it 100. Along with this, you multiply the 60 by 5 as well, which gives you 300.

A piece of carpet is 240cm long.
Mr Jones cuts it into three pieces in the ratio 1:2:5
Work out the length of the longest piece of carpet.

Answers

Answer:

Total ratio=8

Length of the longest side=5/8×240

=150

Step-by-step explanation:

y = 6x - 17
3х - бу = -30

Answers

Answer:

the y one is 3.8

the 3x one is 6

Step-by-step explanation:

In most cells there is a narrow window of time during-which DNA is synthesized.
Which of the following words, if it replaced the word “synthesized” in the sentence above, would CHANGE the meaning of the sentence¿

Answers

I dont know sorry but i bet someone else knows

PLEASE HELPPPPPPPPPPPPP
What is the equation of the line passing through the points (-4,3) and (2,7)?

Answers

Answer:

[tex]y = \frac{2}{3} x + \frac{17}{3}[/tex]

Step-by-step explanation:

First, find the slope of the line:

The formula for finding the slope is: [tex]\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]

Plug in the points:

[tex]\frac{7 - 3}{2 - (-4)}[/tex] = [tex]\frac{4}{6}[/tex] = [tex]\frac{2}{3}[/tex]

So now the equation is y = [tex]\frac{2}{3}[/tex]x + b

Now solve for b by plugging in one of the points:

(2,7)

y = [tex]\frac{2}{3}[/tex]x + b

7 = [tex]\frac{2}{3}[/tex]2 + b

7 = [tex]\frac{4}{3}[/tex] + b

b = [tex]\frac{17}{3}[/tex]

So the equation will be [tex]y = \frac{2}{3} x + \frac{17}{3}[/tex]

CAN SOMEONE ANSWER THIS QUICKLY PLEASE??

Answers

Answer:

a

Step-by-step explanation:

it's a because a is not liner

How can the commutative property be useful when simplifying the expression below?

14+x+4−9−2y−4

Answers

Answer:

x−2y+5

Step-by-step explanation:

Combine Like Terms:

=14+x+4+−9+−2y+−4

=(x)+(−2y)+(14+4+−9+−4)

=x+−2y+5

What is the unknown value

Answers

I think it is 40, Sorry if i am wrong :)

Rob's family ate 3 5/8 pizzas at a local restaurant. Each pizza weighs 1 1/4 kg. Which expression can be used to determine how many kilograms of pizza did Rob's family eat?

Answers

Answer:

b

Step-by-step explanation:

g

What happens to the mean of the data set {2, 4, 5, 6, 8, 2, 5, 6} if the number 7 is added to the data set?

Answers

Answer:

It increases

Step-by-step explanation:

The mean of the given data set of 8 values is 4.75 ([tex]\frac{2+4+5+6+8+2+5+6}{8}[/tex])

Adding 7 into the data set also increase the number of data points to 9, so the mean becomes:[tex]\frac{2+4+5+6+8+2+5+6+7}{9}[/tex], which is equal to 5

Hope this helps

Ben's Sports sells golf tees from a barrel by the scoop. The golf tees come in 5 bright colors mixed in the barrel. To determine what to charge for each scoop, Ben weighed 15 scoops. The weight of each scoop is shown in the line plot below. Use the line plot to answer the questions.

Answers

it’s C i did it on edgunity and i got the answer correct!!

How much would $125 invested at 8% interest compounded continuously be worth after 16 years

Answers

Answer:

Step-by-step explanation:

Answer:

$449.58

Hope this helps!!

What is the slope of the line that contains the points (4, 3) and (13, 6)
m=3
m=1/3
m=3/5
m=-3/5

Answers

the answer is the third 3/5

Combine "like-terms" : 6x + 9y + 12x + 3y *

Answers

18x + 12y I believe.

Answer:

18x + 12y

Step-by-step explanation:

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