Mathematics Middle School

Which equation can be used to solve for x in the following diagram? pls help

Answers

Answer 1

Answer:b

Step-by-step explanation:

Answer 2

Answer:
7x + 11x = 90

Related Questions

Laura baked a cake. She gave 1/5 of the cake to Alex, 1/3 of the cake to Erikson, and 1/10 of the cake to Autumn. How much is left for herself?

Answers

Answer:

11/30

Step-by-step explanation:

Answer:

11/30

Step-by-step explanation:

6/30+3/30+10/30=19/30

30/30-19/30=11/30

plz help its due in a couple of hours

Answers

Number 10 is 884.2222222222222
Number 11 is 3 teaspoons

Which inequalities are true? Check all that apply. $\sqrt{5} \ \textless \ 2.3 \ \textless \ \sqrt{6}$ $\sqrt{5} \ \textless \ 2.4 \ \textless \ \sqrt{6}$ $\sqrt{4} \ \textless \ \sqrt{5} \ \textless \ \sqrt{5.5}$ $\sqrt{8} \ \textless \ 3 \ \textless \ \sqrt{9}$ $\sqrt{8} \ \textless \ 2.9 \ \textless \ \sqrt{9}$ $\sqrt{4} \ \textless \ 4.5 \ \textless \ \sqrt{5}$

Answers

1 and 3 I think Is the answer

HELP ME PLEASE I WILL GIVE BRIANLIEST

Answers

It’s the second one because if you look at the averages you can see no ruff stuff is more expensive so then you just do subtraction to find how much more expensive it is

Answer:

Is this an I-Ready test that your taking?

Step-by-step explanation:

6.6× 101/03 ×107 can sum one plz help me with this question

Answers

Answer:

The answer would be 23,775.4

Step-by-step explanation:

if how u set the question up as in (101 is divided by 03?) then the answer would be 23775.4

REWARDING BRAINLY
Which question could be answered using a measure of center?

How many students got an A on their last math test?

If a wrestling team was put in order from lowest to highest weight class, in what weight class would the wrestler in the middle be?

What is the difference between the highest and lowest grades on last year’s Algebra I exam?

What is the range of shoe sizes in the middle school?

Answers

2, the wrestling team one

What is the slope of the line that passes through (7, 7.1) and (11, 8.3)

Answers

Answer:

0.3

Step-by-step explanation:

I put it on my calculator

Answer:

U get ur answer yet? If not I'll try to figure it out and edit my answer :)

Step-by-step explanation:

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

Which of the following statements are characteristics of an element?
A: I, III
B: I, IV
C: II, IV
D: II, III, IV

Answers

Answer:

Should be D

Step-by-step explanation:

Hope this helps

the answer is D II,III,IV

PLEASE HURRY!!!!!!

Match the following items by evaluating the expression for x = -2.

x ⁻²

x ⁻¹

x ₀

x ¹

x ²
Options: 4, 1/4, -1/2, -2, and 1 (you can use them more than once)

Answers

Step-by-step explanation:

Using x = -2, we can evaluate each expression as follows:

x ⁻² = (-2)⁻² = 1/(-2)² = 1/4

x ⁻¹ = (-2)⁻¹ = -1/2

x ₀ = -2

x ¹ = -2

x ² = (-2)² = 4

Matching these values with the given options, we get:

x ⁻² = 1/4

x ⁻¹ = -1/2

x ₀ = -2

x ¹ = -2

x ² = 4

So the match is:

x⁻² = 1/4

x⁻¹ = -1/2

x₀ = -2

x¹ = -2

x² = 4

Answer:

1/4-1/21-24

Step-by-step explanation:

x^-² = 1/x² = 1/(-2)² = 1/4x^-¹ = 1/x = 1/(-2) = -1/2x⁰ = 1 (since any number raise to zero equal to one)x¹ = (-2)¹ = -2x² = (-2)² = 4

pls mrk me brainliest

negative one-sixth + (–three-sevenths) =

A. Negative Start Fraction 25 over 42 End Fraction
B. Negative Start Fraction 4 over 13 End Fraction
C. Start Fraction 11 over 42 End Fraction
D. Start Fraction 2 over 13 End Fraction

Answers

Answer:

Can you put this in different words so we can understand how to help you better

Step-by-step explanation:

Could you word this differently? I’m confused

Using the Converse of the Pythagorean Theorem, determine if the triangle below is a right triangle.

Group of answer choices

It IS a right triangle because 130 = 130

It IS a right triangle because 121 = 121

It is NOT a right triangle because 7 + 9 does NOT = 11

It is NOT a right triangle because 130 does NOT = 121

Answers

Answer:

it is not a right triangle because 130 does not =121

The answer is d : it is not a right triangle because 130 does not equal 121

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.

Four friends bought ice cream cones. Gabriella’s cone had a radius of 2.5 inches and a height of 3.5 inches. Julie’s cone had a radius of 2.5 inches and a height of 4 inches. Robert’s cone had a radius of 2.2 inches and a height of 5 inches. Luke’s cone had a radius of 2.2 inches and a height of 6 inches. Whose cone will hold the most ice cream?

Answers

Luke's cone had more icecream

Answer:

Step-by-step explanation: Luke's cone had more icecream

Compare square root of one hundred sixty and one hundred fifteen ninths using <, >, or =.

square root of one hundred sixty is greater than one hundred fifteen ninths
square root of one hundred sixty is equal to one hundred fifteen ninths
one hundred fifteen ninths is greater than square root of one hundred sixty
one hundred fifteen ninths is less than square root of one hundred sixty

Answers

The comparison of the numbers are √160 > √115.9. Hence, the correct option is A.

How to compare the numbers?

The numbers are given as

square root of one hundred sixty and one hundred fifteen ninths

Rewrite properly as

√160 and √115.9

By comparing the radical of both numbers, we have

160 and 115.9

160 is greater than 115.9

Hence, the comparison of the numbers are √160 > √115.9

Answers

Answer:

Step-by-step explanation:

845 beads divided by 13 beads is 65. You can make 65 bracelets.

The answer would be 65.

Select True or False for the equations.

Equation True False
−102=10−2=5
True – − 10 2 = 10 −2 =5
False – − 10 2 = 10 −2 =5
102=−10−2=5
True – 10 2 = −10 −2 =5
False – 10 2 = −10 −2 =5

Answers

Answer:

10-2=8

Step-by-step explanation:

Answer:

False 10-2=5

Step-by-step explanation:

BRAINLIEST At a clearance sale, Jalissa bought a jacket that was marked down by 60%. the regular price of the jacket was 89, how much did Jalissa pay for the jacket

Answers

Answer:

Jalissa paid $35.6 for the jacket at the clearance sale.

Step-by-step explanation:

If the jacket was marked down by 60%, then Jalissa paid 40% of the regular price.

To find out how much she paid, we can start by calculating 40% of the regular price:

40% of 89 = 0.40 x 89 = 35.6

So Jalissa paid $35.6 for the jacket at the clearance sale.

Answer:

Jalissa paid $35.6 for the jacket at the clearance sale.

Step-by-step explanation:

To find out how much she paid, we can start by calculating 40% of the regular price:

40% of 89 = 0.40 x 89 = 35.6

Brainliest Please, i am almost ace

The ages of 12 runners in a recent marathon are listed.

22, 31, 16, 19, 15, 24, 27, 27, 14, 31, 32, 30

Find the median and interpret its meaning as it relates to the runners.

The median is 18.5, and it represents the typical age of the runners.
The median is 24.5, and it represents the difference in the lowest and highest ages of runners.
The median is 25.5, and it represents the typical age of the runners.
The median is 27.5, and it represents the difference in the lowest and highest ages of runners.

Answers

Answer:

the median is 37.5

Step-by-step explanation

Answer:

its d

Step-by-step explanation:

The multiplicative inverse of -⅚ is

Answers

Answer: -6/5

Step-by-step explanation:

Multiplicative inverse simply is another word for 'reciprocal'.

A reciprocal is the fraction upside down, or inverted.

Knowing this, let's convert -5/6.

-5/6 becomes -6/5, and you don't do anything about the negative sign.

Answer: -6/5

Step-by-step explanation:

u just get the reciprocal

The circumference of a circular park is approximately 18 feet. What is the approximate area inside the circular park?

Answers

Answer:

25.685 square feet.

Step-by-step explanation:

Circumference = 2 * π * radius

From this, we can derive the formula for the radius:

radius = Circumference / (2 * π)

Let's substitute the value of the circumference and calculate the approximate radius:

radius = 18 / (2 * π)

radius ≈ 18 / (2 * 3.14159)

radius ≈ 2.865 feet

Now that we have the approximate radius, we can calculate the area:

Area ≈ π * radius²

Area ≈ 3.14159 * (2.865)²

Area ≈ 3.14159 * 8.193225

Area ≈ 25.685 square feet

Therefore, the approximate area inside the circular park is approximately 25.685 square feet.

We know that the circumference of a circle is given by:

C = 2πr

where C is the circumference and r is the radius of the circle.

In this case, we are given that the circumference is approximately 18 feet, so we can set up the following equation:

18 = 2πr

Solving for r, we get:

r = 9/π ≈ 2.864 feet

Now we can use the formula for the area of a circle:

A = πr^2

Substituting the value we found for r, we get:

A = π(2.864 ft)^2 ≈ 25.85 ft^2

Therefore, the approximate area inside the circular park is approximately 25.85 square feet.

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:

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 = $\frac{33}{13.2}$

Length of ST = $\frac{33}{13.2}$ × 6

= 15

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

#SPJ3

Multiply the pairs of numbers and match them with their products. Tiles (-5)(4.2) (-7)(-3) (4) (5) (2.5)(-9) Pairs 22.5 21 -22.5 -21 111

Answers

Here are the pairs matched with their products:

- (-5)(4.2) matches with -21

- (-7)(-3) matches with 21

- (2.5)(-9) matches with -22.5

Pairs (4) and (5) do not have corresponding products in the given options.

The products of the given pairs of numbers are:

(-5)(4.2) = -21

(-7)(-3) = 21

(4)(5) = 20

(2.5)(-9) = -22.5

So, the pairs of numbers and their products are as follows:

(-5)(4.2) = -21 matches with -21.

(-7)(-3) = 21 matches with 21.

(4)(5) = 20 matches with 20.

(2.5)(-9) = -22.5 matches with -22.5.

I hope this helps!

Is this correct? If not, please correct it, and show all work including why it’s wrong.

Answers

Answer:

a. 12

b. 1/2

Step-by-step explanation:

Given a meal has 3 choices of meat, 2 choices of fruit, and 2 choices of dessert, you want to know the number of possible meals, and the probability of a meal with no cookie for dessert.

a. Possibilities

As the tree diagram shows, the number of possible meals is ...

(possible meats)×(possible fruits)×(possible desserts)

= 3×2×2 = 12

There are 12 possible lunch options.

b. Cookies

Half the possible dessert choices have no cookie. That is the probability that a lunch will have no cookie:

P(no cookie) = 1/2

Additional comment

The bottom line of the tree diagram has 6 Cs and 6 Ms. That is, 6 of the 12 options for meals have no cookie.

<95141404393>

Solve this please
-1+8v = 2+8v

Answers

There are no solutions to this.

-1+ 8v = 2+ 8v
-8v -8v
—————————
-1 = 2
+1 +1
—————————-
0 = 3

A CLOSER LOOK
Solve Equations by Substitution
f
Determine whether the given value for the variable is the solution to the equation.
2n+5=27; n=11
Substitute the value for the variable.
2⋅11+5=?27
The value for n is 11, so replace n with 11.

Think About ItWhy does the equals sign have a question mark above it?

While the expression on the left has a variable, the expression has no value. Once we replace the variable with a number, the expression immediately has a value. Until we simplify that expression, we don’t know what this value is and whether or not it’s the same value as the expression on the right. Therefore, we place a question mark over the equals sign to show that we don’t know whether the expressions are equal.
Simplify.
2⋅11+5=?27
22+5=?27
27=27
The left side of the equation has an expression that must be simplified. Follow the order of operations. First, multiply 2 by 11 to get 22. Then, add 22 and 5 to get 27. Since the expression on the left is the same as the expression on the right, the expressions are equal.

Conclude.
n=11 is the solution to the equation.

Since substituting 11 for n resulted in the expression on the left equaling the expression on the right, 11 is the solution to the equation.

Answers

Answer:

Step-by-step explanation: 48

Jill can make 50 flash cards every 20 minutes COMPLETE THE TABLE USING EQUIVALENT RATIOS.
MINUTES NUMBER OF CARDS
50
30
20 -----
-----
36

Answers

Answer:

minutes : # of cards made

20 50

40 100

60 150

80 200

100 250

120 300

140 350

160 400

180 450

200 500

220 550

240 600

260 650

280 700

300 750

320 800

340 850

360 900

380 950

400 1000

And please let me know if this helps.

determine the area of the figure below

Answers

I’m pretty sure it’s 64.4

Explanation:

Multiply them all

Find the square root of the answer .

Which is 4160.
So the square root of 4160 is 64.4.

Correct me if I’m wrong .

Answer:

multiply all of them then divide by 2

Step-by-step explanation:

Snow is falling steadily in Syracuse, New York. After 2 hours, 4 inches of snow has fallen.

Complete the table and answer the questions.

Time (hours) Snow (Inches)
2/2
1
1
2
2 4
6.5
x

Answers

Answer:

all of the abpve

Step-by-step explanation:

All of the above, I hope this helps you

EXPERT HELP I'LL GIVE BRAINLIEST: EXPLAIN THE ANSWER

Answers

Answer:

Step-by-step explanation:

If they were far apart then the samples' values change too much between tests so you cannot draw a good conclusion.

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