Mathematics Middle School

help me please i cant do it

Answers

Answer 1

Answer:

Step-by-step explanation:

there are 2 red marbles for every 5 blue marbles, and we know that there are 6 red marbles total.

2x3=6, so we know that there are 3 sets of 2 red marbles, meaning there is also 3 sets of 5 blue marbles.

So there are 3x5=15 blue marbles in the bag

Answer 2

Red : Blue
2 : 5

As red is 2 parts, and we already know that there are 6 red marbles, we can use this to find that 1 part is 3 marbles (6 divided by 2).

There are 5 parts blue. If 1 part is 3 marbles, then if we multiply that by the amount of parts for blue, we get 15.

Therefore, the bag contains 15 blue marbles.

Related Questions

christopher places an order for 48 dozen cookies to bring to his family holiday party. his family eats 2/3 of the cookies, how many cookies are left over?

Answers

Answer:

16 cookies are left.

Step-by-step explanation

2/3 of 48 is 32

48-32=16

16 Cookies left.
2/3 of 48 is 32.
48-32=16

The stem-and-leaf plot displays data collected on the size of 15 classes at two different schools.

Mountain View School Seaside School
0 5, 8
9, 8, 2, 0 1 0, 1, 2, 5, 6, 8
8, 7, 6, 5, 5, 4, 4, 3, 1, 0 2 5, 5, 7, 7, 8
0 3 0, 6
Key: 2 | 1 | 0 means 12 for Mountain View and 10 for Seaside

Part A: Calculate the measures of center. Show all work. (2 points)

Part B: Calculate the measures of variability. Show all work. (1 point)

Part C: If you are interested in a smaller class size, which school is a better choice for you? Explain your reasoning. (1 point)

Answers

To calculate the measures of center, we need to find the mean and median for each school.

For Mountain View School:
Data: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 0 + 1 + 2 + 3 + 4 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 8 + 8 + 8 + 9) / 19
= 100 / 19
≈ 5.26

To find the median, we need to arrange the data in ascending order: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5

For Seaside School:
Data: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 1 + 1 + 2 + 2 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 7 + 8 + 8 + 8 + 9) / 19
= 80 / 19
≈ 4.21

To find the median, we need to arrange the data in ascending order: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5

Now let's calculate the measures of variability, specifically the range and interquartile range (IQR).

Range: The range is the difference between the largest and smallest values in the dataset.

For Mountain View School:
Range: 9 - 0 = 9

For Seaside School:
Range: 9 - 0 = 9

Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1) and measures the spread of the middle 50% of the data.

For Mountain View School:
Q1 = 3
Q3 = 7
IQR = Q3 - Q1 = 7 - 3 = 4

For Seaside School:
Q1 = 2
Q3 = 7
IQR = Q3 - Q1 = 7 - 2 = 5

To determine which school is a better choice for a smaller class size, we can consider both the mean and the median.

Both the mean and median for Mountain View School are higher than those for Seaside School. This suggests that, on average, the class sizes at Mountain View School are larger than those at Seaside School. Therefore, if you are interested in a smaller class size, Seaside School would be a better choice

Part A:

For Mountain View School:
- Median: The median class size is the middle value, which is 25.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (29 + 28 + 28 + 27 + 25 + 24 + 24 + 23 + 21 + 20 + 19 + 18 + 15 + 13 + 10) / 15 = 21.27.

For Seaside School:
- Median: The median class size is the middle value, which is 20.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (25 + 25 + 27 + 27 + 28 + 28 + 28 + 30 + 31 + 35 + 36 + 38 + 40 + 43 + 45) / 15 = 31.13.

Part B:

For Mountain View School:
- Range: The range is the difference between the largest and smallest values, which is 29 - 10 = 19.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 20 and Q3 is 28. Therefore, the IQR is 28 - 20 = 8.

For Seaside School:
- Range: The range is the difference between the largest and smallest values, which is 45 - 25 = 20.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 27 and Q3 is 38. Therefore, the IQR is 38 - 27 = 11.

Part C:

If you are interested in a smaller class size, Mountain View School is a better choice for you because it has a lower mean and median class size than Seaside School.

Help plssssssss
Answers:

9/6 = 11.25/LM
9/6 = LM/7.5
6/9 = LM/4.5
6/9 = 4.5/LM
(It's also multichoice so choose 2 answers.)

Answers

The answer is 9/6, so the first two options
Explenation: you need the number to know what to multiply 4.5 by

9/6 is the answer cause you need to multiply by 4.5

Susie has 8 pieces of string. Each string measure 6.5 inches long, how many inches of string does she have in all?

Answers

Answer:

Step-by-step explanation:

8 times 6.5= 52

Answer:

She has 52 pieces of string in all.

Step-by-step explanation:

Please help me this is due today

Answers

a) The predicted heating cost for a month with temperature of 25 ºF is given as follows: $65.70.

b) The predicted heating cost for a month with temperature of 0 ºF is given as follows: $96.20

c) For an increase of one degree Fahrenheit, the predicted decrease in the cost is of $1.22.

How to define a linear function?

The slope-intercept representation of a linear function is given by the equation presented as follows:

y = mx + b

The coefficients of the function and their meaning are described as follows:

m is the slope of the function, representing the change in the output variable y when the input variable x is increased by one.b is the y-intercept of the function, which is the initial value of the function, i.e., the numeric value of the function when the input variable x assumes a value of 0. On a graph, it is the value of y when the graph of the function crosses the y-axis.

The slope and the intercept for the function in this problem are given as follows:

Slope of -1.22, meaning that for an increase of one degree Fahrenheit, the predicted decrease in the cost is of $1.22.Intercept of 96.2, meaning that the predicted heating cost for a month with temperature of 0 ºF is of $96.20.

Hence, the predicted cost for a month with temperature of 25ºF is given as follows:

y = -1.22(25) + 96.20 = $65.70.

More can be learned about linear functions at https://brainly.com/question/24808124

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Answers

I can’t read bring it closer on a new post

I can’t really see but i’ll be sure to help you if you could bring it closer !

Which of the equations will be a true statement if p=10 power of 3? Select all that apply.
A.
3
.
4
÷
p
=
0
.
034
B.
437
÷
p
=
0
.
437
C.
53
.
45
÷
p
=
53
.
45
D.
6
,
340
÷
p
=
6
.
34
E.
2
,
458
.
2
÷
p
=
24
.
582

Answers

Answer:

A. 3.4 divided by p equals 0.034

B. 437 divided by p equals 0.437

C. 53.45 divided by p equals 53.45

D. 6,340 divided by p equals 6.34

E. 2,458.2 divided by p equals 24.582

Which of the equations will be a true statement if p=10 power of 3? Select all that apply.

The answer is A D and E

Step-by-step explanation:

All of the above because you have to look outside the box and think what is the question asking you. STOP being so relying trust your own guts :)

A pink crayon is made with 12 mL, of red wax for every 5mL of white wax.
Which of the following wax mixtures will create the same shade of pink?
Choose 2 answers:
A
10 mL of red wax mixed with 24mL of white wax

B
48 mL of red wax mixed with 12mL of white wax

C
13mL of red wax mixed with 6mL of white wax

D
36mL of red wax mixed with 15mL of white wax

E
60mL of red wax mixed with 25mL of white wax

Answers

Answer:

Multiply 12 and 5 (by the same number) and add them to get whatever total ml of crayon wax is specified.

Ex: Total ml divided by 17, then find how many parts are red(12ml) and white(5ml)

The answer is d because 12 x 3 is 36 so you have to do the same to the other side so 5 x 3 is 15

What is the value of the x variable in the solution to the following system of equations? 4x − 3y = 3 5x − 4y = 3

** explain like why you did each step im hella confused thanksss

Answers

Answer:

Hey There!

Let's solve....

Isolate for x first which is

$x = \frac{3 + 3y}{4} \\ $

$substitute \: x = \frac{3 + 3y}{4} \\ \\ \brack \: 5 \times \frac{3 + 3y}{4} - 4y = 3 \\ \\ $

Now simplify...

$ \brack \: \frac{15 - y}{4} = 3 \\ \\ = y = \frac{15 - 3}{4} \\ \\ = \frac{12}{4} \\ simplify \\ \\ \frac{ \cancel{12} ^{3} }{ \cancel{4}^{1} } \\ x = 3$

Y=3

We need to find value of y first... now x

$x = \frac{3 + 3 \times 3}{4} \\ \\ =x = \frac{3 + 9}{4} \\ \\ = x = \frac{12}{4} \\ simplify \: \frac{ \cancel{12}^{3} }{ \cancel{4} ^{1} } \\ \\ value \: of \: x = 3 $

I hope it is helpful to you...Cheers!_____________

Answer:

x = -1.3

I hope this is right, and I am sorry if this is wrong if it is! I rlly hope this helps you out and you can understand my method and the way I typed this!!

Step-by-step explanation:

We are going to use one of my fav methods! The substitution method!

Set this aside for now: 4x - 3y = 3 We gonna use this one: 5x - 4y = 3

5x - 4y = 3

= 5x - 3 = 4y

( also, the subtraction is with the 4y as a negative, so 4y would be positive if you moved it!)

Divide all of the equation by 4!

y = $y = \frac{5x - 3}{4}$

Now, you take take the other equation and substitute the y with what you have above!

$4x - 3 times \frac{5x - 3}{4} = 3$

you cross multiply 4( the denominator) with the other side that has only a three!

4x - 3 $times 5x - 3$ = 12

4x - 15x - 3 = 12

-11x - 3= 12

Move the three to the other side become positive!

-11x = 15

divide both sides by -11

x = -1.3

PLEASE HELP
Write an equivalent expression for -5x+3×2.5x

Answers

Answer:

2.5x

Step-by-step explanation:

-5x+3*2.5x

Multiply

-5x+7.5x

Combine like terms

x(-5+7.5)

2.5x

An electrician plans to install solar panels on a rectangular section of roof with an area of
69

m
2
69m
2
69, start text, m, end text, squared.
Tyriq said
69
÷
7
1
10
69÷7
10
1

69, divided by, 7, start fraction, 1, divided by, 10, end fraction could represent the length of the section if the roof is
7
1
10

m
7
10
1

m7, start fraction, 1, divided by, 10, end fraction, start text, m, end text across.
Corbin said
69
÷
7
1
10
69÷7
10
1

69, divided by, 7, start fraction, 1, divided by, 10, end fraction could represent the number of solar panels that would fit if each panel was
7
1
10

m
7
10
1

m7, start fraction, 1, divided by, 10, end fraction, start text, m, end text long.
Whose interpretation makes sense in this context?

Answers

Answer: So it would be...

Step-by-step explanation:

1769

Answer:its not shown

Step-by-step explanation:

the numbers are weird

Please help! I need this asap!

Answers

Answer:

it is the second one

Step-by-step explanation:

It’s the second multiple choice

In the figure m1=(3x+12), m2=(3x+18), and m3=(7x+10). What is m3? Explain your method

Answers

Answer:

The solution is, the value of m<3 = 31.

What is simplification?

Simplify simply means to make it simple. In mathematics, simply or simplification is reducing the expression/fraction/problem in a simpler form. It makes the problem easy with calculations and solving.

here, we have,

given that,

in the figure, m<1= (3x+12)°, m<2= (3x+18)° and m<3= (7x+10)°.

now we get,

m<1= (3x+12)° is equal to m<3= (7x+10)°.

so, we have,

3x+12=7x+10

4x=2

x=1/2

m<3=7(3)+10=31

Hence, The solution is, the value of m<3 = 31.

Step-by-step explanation:

Pls ad me brainliest

Please help! Use the geometric mean theorem to solve.

Answers

Answer:

15.41

16.28

17.28

19.30

Step-by-step explanation:

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hellllllllllllllllp plz...

Answers

A. Sumar 13 y 9.

22=22

B.Mover todos los términos que no contengan

d al lado derecho de la ecuación.

d=4

C.Reste 3 de −40

t−43

D.Reste 19 de 5

32=−14

A. es igual a 9.

B. 2 = es igual a 43

C. es igual a 4

D. es igual a 13

A table of values of a linear function is shown below. Find the output when the input is n. Type your answer in the space provided.
I need the 5th output, I'll give brainiest

Answers

Answer:

the equation is f(x)4x+2

if the input is a generic number n, the output will be 4n+2

Step-by-step explanation:

Vita has 8 times more candy than Anna, but Uldis has 10 candies more than Anna.
How many candies does each of the children have if they have a total of 60 candies?
To solve, make an equation!

Answers

Your mom dad grandma grandpa aunt uncle step dad or step mom or foster parents

When tossing a two-sided, fair coin with one side colored red and the other side colored green, determine P(green).

2
one half
green over red
red over green

Answers

Answer:

one half

Step-by-step explanation:

Total number of outcomes = 2

Event of obtaining green = 1

Probability of obtaining green= one half

The solution is Option B.

The probability of getting green P ( green ) = 1/2

What is Probability?

The probability that an event will occur is measured by the ratio of favorable examples to the total number of situations possible

Probability = number of desirable outcomes / total number of possible outcomes

The value of probability lies between 0 and 1

Given data ,

Let the probability of getting a green while tossing a coin be P ( green )

Now , the total number of colors in the coin = { red , green } = 2

The probability of getting a green = green / total number of colors in the coin

Substituting the values in the equation , we get

Probability of getting a green while tossing a coin P ( green ) = 1/2

Probability of getting a green while tossing a coin P ( green ) = 0.5

Therefore , the value of P ( green ) is 1/2

Hence . the probability is 1/2

To learn more about probability click :

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Word Problems (WITH EXPLANATION)

In the rectangle below, the line MN cuts the rectangle into two regions. Find x, the length of segment NB, so that the area of the quadrilateral MNBC is 40% of the total area of the rectangle.

Answers

The length of segment NB is 0.833

Finding x, the length of segment NB

From the question, we have the following parameters that can be used in our computation:

The rectangle

The area of the rectangle is

Area = (20 + x) * 10

The area of MNBC is

Area = 1/2 * 10 * (x + 20 + x - 5)

Area = 5(2x + 15 )

The area of the quadrilateral MNBC is 40% of the total area of the rectangle

So, we have

5(2x + 15) = 40% * (20 + x) * 10

5(2x + 15) = 4* (20 + x)

When evaluated, we have

x = 0.833

Answers

Answer:

The first box is -8 and the second box is -2 and the last box is not equivalent.

Step-by-step explanation:

m + 3 = -5 subtract 3 from both sides

m = -8

First box: -8

Second box: -2

Third Box- Are not

order the values from least to greatest |-16|, 10, |25|, -16, |-43|

Answers

Answer:

-16, 10, 16, 25, 43

Step-by-step explanation

when you have something in absolute value bars it's always going to be positive so you would make -16 regular 16; and 10 stays 10; 25 stays 25; -16 stays - 16; and then -43 turns into regular 43

Answer:

-16, 10, 16, 25, 43

Step-by-step explanation:

If it has the bars around it and its a negative number it turns into a posotive

Joe's weekly paycheck shows a gross pay of $550. There is a federal income tax deduction of $95.00, a social security tax deduction of $15.45, and a Medicare deduction of $11.38.

Joe has weekly expenses. He spends $20.20 on gas, $45.00 for a cell phone and $22.00 on school lunch. How much net income will Joe have left after all of his expenses are paid?

$202.45

$340.97

$400.87

$420.98

Answers

Answer: $400.87

Step-by-step explanation: $550 - 95$ - 15.45$ - 11.38$ - 20.20$ - 45.00$ - 22.00$ = $340.97

Answer: 340.97

step-by-step-explanation:
$550-$95-$15.45-$11.38= $428.17
$428.17-$20.20-$45-$22= $.

Keira said that if 6 tickets are sold, there should be 2 tickets left. Is Keira correct?

Answers

To determine whether Keira's statement is correct, we need to analyze the information provided.

According to Keira, if 6 tickets are sold, there should be 2 tickets left. However, we don't have any information about the initial number of tickets available.

If the total number of tickets initially was 8, and 6 tickets were sold, then there would indeed be 2 tickets left, supporting Keira's statement.

However, if the total number of tickets initially was less than 8, or if the statement doesn't specify the initial number of tickets, we cannot determine if Keira's statement is correct.

Therefore, without additional information, we cannot determine the accuracy of Keira's statement.

in order to know if Keira has two tickets left, we need to know the first number of tickets without that number there is no way to find the remainder

1 million to the power of 10

Answers

1 x 10 ^60 …………………………..

Step-by-step explanation:

The answer of 1 million to the power of 10

= 1e+60

how many ounces are in 6 pounds?

Answers

[MA]:

Writer's note: i can't really explain it.

[xArtsy]

Answer:

96 ounces

Step-by-step explanation:

is laying carpet in hallway. Use this to answer parts a and b.
2 ft
2 ft
6 ft
12 ft
8 ft 6 in.
2 ft 6 in.
Question content area bottom
Part 1
a. wants to decompose hallway into the fewest number of quadrilaterals possible. What shapes will decompose it into?
will decompose it into
2 trapezoids.
Part 2
b. How many square of carpet does need?

enter your response here square feet
(Simplify your answer.)

Answers

(a) Christine will decompose the shape into 2 trapezoid

(b) Christine will need 29 square feet area of carpet

How to evaluate for the area of the trapezoid.

area of the trapezoid is calculated using the formula: 1/2 × (AB + CD) × height, where AB and CD are the lengths of its parallel sides.

(a). The shape will be decomposed into two (2) trapezoid

(b). For the bigger trapezoid;

8ft 6in = 8.5 ft

area of bigger trapezoid = 1/2 × (8.5 + 12) × 2 ft²

area of bigger trapezoid = 20.5 ft²

For the smaller trapezoid;

2ft 6in = 2.5 ft

area of smaller trapezoid = 1/2 × (2.5 + 6) × 2 ft²

area of smaller trapezoid = 8.5 ft²

Total square feet area of carpet = 20.5 ft² + 8.5 ft²

Total square feet area of carpet = 29 ft²

Therefore, (a) Christine will decompose the shape into 2 trapezoid

(b) Christine will need 29 square feet area of carpet

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Pls help, must need help, its due, and that's the last question, I need helllppp.
Will give Brainliest

Answers

Answer:

range is 17

Step-by-step explanation:

I NEED HELP STAT!! 15 POINTS!!

Study the image at the left. Pay careful attention to the
notation and location of the labeled coordinates.
Which is the result of this dilation?
Enlargement
Reduction
Congruent image

What is the scale factor?
2
1/2
3/2
3

Answers

Answer:

The result of this dilation is an enlargement. The scale factor is 3.

Step-by-step explanation:

The original figure has coordinates (0,0), (1,0), (2,0), (2,1), and (1,1). The dilated figure has coordinates (0,0), (3,0), (6,0), (6,3), and (3,3). Notice that the distances between corresponding points in the original and dilated figures are all multiples of 3. This means that the dilation has a scale factor of 3.

In general, a dilation is an enlargement if the scale factor is greater than 1, a reduction if the scale factor is less than 1, and a congruent image if the scale factor is equal to 1.

Answer:3

Step-by-step explanation:

pls help me with this

Answers

Step-by-step explanation:

If you are multiplying a fraction and a whole number just make the whole number a fraction by using the whole number as the numerator and a 1 as the denominator.

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7th grade math I'll give brainliest