Mathematics Middle School

plz help ASAP will give brainliest!!!

Answers

Answer 1

Answer:

Step-by-step explanation:

5.25x +6 =74.25

5.25x = 74.25 -6

5.25x =68.25

x = 68.25÷5.25

x = 13

Answer 2

Answer:

x=13

Step-by-step explanation:

1) Subtract 6 from both sides.

2) Divide by 5.25 on both sides to get x on its own.

$5.25x+6=74.25\\5.25x+6-6=74.25-6\\5.25x=68.25\\\frac{5.25x}{5.25} = \frac{68.25}{5.25} \\x=13$

Related Questions

write the following fractions as decimals
2/6
4/6
5/6

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2/6 = 0.3 (repeating)

4/6 = 0.6 (repeating)

5/6 = 0.83 (3 repeats)

If you want to know how to do it divide the numerator by the dominator. Ex.
2/3

2 divided by 3 = .66666666666667

What is the domain and range of:

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Answer:

Step-by-step explanation:

how it works with life

The answer is b explanation I asked my math teacher on mine

Which number is equivalent to 0.51 repeating

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Hello we don’t have enough information to answer this is there some answer choices you have?

How far did I travel to reach my destination on each day of my three-day Trip?
a. On Day 1, after traveling 5/8 of the way to the first day's destination, I still had 15 miles left to go before reaching my first destination.
b. On Day 2, after traveling 18 miles, I still had 2/5 of that day's distance left to go before reaching my second destination.
c. On Day 3, after traveling 5/11 of that day's distance, I still had 6 more miles to travel than what I had already traveled that day, before reaching my third destination.

Answers

The total distances you traveled to reach your destination on each day of your three-day trip are as follows:

a) Day 1 = 40 miles

b) Day 2 = 30 miles

c) Day 3 = 11 miles.

How the total distances are determined:

The total distances are determined using proportions.

Proportion refers to the fractional value of the whole number or quantity.

a) Day 1:

The fractional distance traveled = ⁵/₈

The remaining distance to travel = 15 miles

15 miles = ³/₈ (1 - ⁵/₈)

Proportionately, the total distance = 40 miles (15 ÷ ³/₈)

b) Day 2:

The distance traveled = 18 miles

The remaining distance to travel = ²/₅

The distance traveled = ³/₅ (1 - ²/₅)

³/₅ = 18 miles

Proportionately, the total distance = 30 miles (18 ÷ ³/₅)

c) Day 3:

The distance traveled = ⁵/₁₁

The distance to travel = 6 miles

The distance to travel in fractions = ⁶/₁₁ (1 - ⁵/₁₁)

Proportionately, if 6 miles = ⁶/₁₁, the total distance = 11 miles (6 ÷ ⁶/₁₁)

Learn more about proportions at https://brainly.com/question/1496357.

#SPJ1

IMPORTANT! Please do....needed badly.

Answers

Answer: line r and line s

Step-by-step explanation:

m angle 3=76

So m angle 4=180-76=114

m angle 4=m angle 8=114

line r and line s r parallel

please help me out i need it.

Answers

Answer:

a and c

Step-by-step explanation:

Answer:

bottom one and top one

Step-by-step explanation:

Which property of equality can be used to solve the equation n plus nine equals negative three?

Answers

Answer: Subtraction property of equality.

Step-by-step explanation:

n + 9 = -3

You are trying to move 9 from one side to the other. To do that, you have to do the inverse operation and subtract nine from both sides. Your result would be n = -12.

Subtractive property of equality

Use the Distributive Property to simplify the expression. -4(x + 3)

Answers

The answer simplified is
-4x-12

The answer is -4(x+3) = -4x-12

Rachel types 162 words in 3 minutes. Rachel types at a constant rate.
How many words does Rachel type per minute?

Answers

Answer:

I think the answer is 54

Answer:

Step-by-step explanation:

162 divided by 3 is 54

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.

For each ride, a taxi service charges an initial fee plus an additional fee based on the number of kilometers of the trip. The graph shows the cost for taxi rides. Select a true statement. The rise is 4 while the run is 2. The selection of answers are:
A: The slope is 2.1. This means that each kilometer costs $2.10.
B: The slope is 5. This means that each kilometer costs $5.
C: The y-intercept is 2.1. This means that the initial fee is $2.10.
D: The y-intercept is 5. This means that the ride lasts 5. kilometers.

Which one is right and why?

Answers

THIS MIGHT NOT BE WHAT YOU ARE LOOKING FOR AND MIGHT NOT BE CORRECT! READ FIRST!

The answer is A. The slope of the line is rise/run = 4/2 = 2.1. This means that each kilometer costs $2.10. The y-intercept is 2.1, which means that the initial fee is $2.10. So the correct statement is: The slope is 2.1. This means that each kilometer costs $2.10.

The other statements are incorrect. The slope is not 5, so each kilometer does not cost $5. The y-intercept is not 5, so the ride does not last 5 kilometers. The y-intercept is the value of the function when the input is 0, which in this case is the initial fee of $2.10.

The answer for this is a

You pick a card at random. 6 7 8 9 What is P(divisor of 70)? Write your answer as a percentage. %

Answers

Answer:

Step-by-step explanation:

6.789x10 3 esta es la solución

Please help I need it now, asap it's due in 5 mins.

Answers

Answer:

Step-by-step explanation:

$105+3x=180 \\ \\ 3x=75 \\ \\ x=25$

Answer:

The answer is 25 degrees

Step-by-step explanation:

If you subtract 180 - 105 then you get 75.
Then you divide it by 3.
One circle is 360 degrees thus half of it is 180.
If you know one angle is 105 degrees then subtract it from 180.
If the number is 3x then you have to divide it by 3 to get x alone.
Hope it helps! :)

Andy and Nick went to the amusement park. They each bought a sandwich, and Nick got a small drink. Andy had a $10 gift certificate to put toward the cost, and Nick paid the rest, which came to $44.50. A ticket costs $20.00, and a sandwich costs $6.50. How much does a drink cost at the amusement park?

Answers

Answer:

$1.25

Step-by-step explanation:

To do this problem, you need to note that they bought two of almost everything. You are also working backwards at first to get how much they spent total and then taking away the expenses.

The first step is finding how much money they spent total, and you can do this by adding the gift certificate to the price:

44.5 + 10 = $55.50

Now, you see that they each bought a ticket for $20 EACH. There were two tickets (one for Andy, one for Nick). So multiply 20 by 2 and subtract that from your total cost.

$55.50 - (2 * $20) =

$55.50 - $40 =

$15.5

They bought a total of TWO sandwiches at 6.50 each. So repeat these steps, subtracting from the number above (underlined)

$15.50 - ($6.50 * 2) =

$15.50 - $13 =

$2.5

They bought two drinks that totaled to be $2.50.

To find the cost of ONE drink, divide this number by 2:
$2.50/2 =

$1.25

Answer:

A drink costs $1.5 at the amusement park

Step-by-step explanation:

44.50 + 10 = 54.5

2 people 1 ticket = $20 1 sandwich = $6.5

20 × 2 = 40

6.5 × 2 = 13

40 + 13 = 53

54.5 - 53 = 1.5

Find the solution set of the inequality.
10c + 5 ≤ 45

Answers

The answer is C < 4
-

C < 4 creo no estoy seguro

Can someone please help me-?

Answers

Answer:

Step-by-step explanation:

I wanted to reach out and apologize for the mistake that occurred. I understand that it caused some inconvenience and take full responsibility for it. Please know that it was not intentional and I am committed to ensuring that it does not happen again. Thank you for being so understanding and please let me know if there is anything else I can do to make things right.

The expression 2x2 - 2x - 3 is correct answer.

A square prism has square sides with area ++x squared , plus 8 x plus 16 and rectangular sides with area ++2 , x squared , plus 15 x plus 28. What expression represents the surface area of the square prism?

Answers

Answer:

10x^2+76x+144

Step-by-step explanation: ayo if i helped thank me i hoped i did have a great day

Please help, I don't have much to give but I'm really struggling to understand this.

Answers

Here is your answer

2187^4 if you simplify (3^7) bc its in the parenthesis

Misty is buying a pair of jeans for $54 and a

pair of boots for $95. She has a coupon for

15% off if she spends at least $75. If sales

tax is 8%, how much will she pay in total?

Answers

Answer:

$53.75

Step-by-step explanation:

$54+$95-15%-$75 +8%

Answer:

$53.75

Step-by-step explanation:

2. The graph shows a proportional relationship between the number of prairie dogs in a community and the amount of grass they eat per week.

Answers

Answer:

A.3,000 prairie dogs

B. 18,000 pounds

C. 6 pounds per prairie dog

Step-by-step explanation:

A. Use graph

B. 2000x9=18,000

C.18000 divided by 3000= 6

*Give 5 stars*

Which scenario can be modeled by the linear function
y = -15x + 500?

A. The temperature on Jupiter is
15℉ and increases by 500℉ every day.

B. There is a population of 500 giraffes in Western Africa that decreases by 15 giraffes each year.

C. A carpet cleaning service charges $500 plus an additional $15 for every hour.

D. A membership fee for a movie streaming service is free, but each rental costs $15.

Answers

I think the answer is C

The answer is a because it is able to be modeled unlike the rest

what are the outliers

Answers

430-432 Im assuming it’s counting by two

Answer: 430-432 Im assuming it’s counting by two

Step-by-step explanation: i think it is that

What is the definition of Probability

Answers

Answer:

the extent to which an event is likely to occur, measured by the ratio of the favorable cases to the whole number of cases possible

A definition is a probability is a number that reflects the chance or likelihood that a particular event will occur.

Can some one tell me the answer

Answers

The answer is c hope this helps

I think it’s C hope it helps

PLEASE HELP ME I NEED THIS RN

Answers

Step-by-step explanation:

3 wholes, 12 tenths, 4 hundredths. After the change, it's 4 wholes, 2 tenths, and 4 hundredths. The sum is 4.24.

Answer:

In the begining you put 4 hundreths and 12 tenths in the next boxes you would put 4 wholes 2 tenths and 4 hundreths and the sum is 4.24

Step-by-step explanation: I have taken this quiz but the long green tens are your tenths and the the little blue blocks are hundredths and the big orange ones are wholes. So you count them all and put them in the 2 boxes .

Which equation is correct?

75 × 4 = 70 × 4 + 5 × 4

75 × 4 = 70 + 5 × 4

75 × 4 = 70 × 4 + 5

75 × 4 = 700 × 4 + 5 × 4

Answers

Answer:

Equation which is correct

75 × 4 = 70 × 4 + 5 × 4

Prism A is a dilation of Prism B. The height of Prism A is 6 1/2 ft, and the volume of Prism A is 87 3/4 ft³. The height of Prism B is 3 1/4 ft.

What is the volume of Prism B?