Mathematics Middle School

Help me I’m using khan

Answers

Answer 1

Answer:

18.84 units

hope this helps

Related Questions

i need HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

No, they are not in proportion

Step-by-step explanation:

As when we cross-multiply 2/3 and 7/10, we get 20 = 21

When we cross-multiply 1 and 3/5, we get 5 = 3

When we cross-multiply 4/3 and 1/2, we get 8 = 3

20=21 ≠ 5=3 ≠ 8=3

∴ Hence, they are not in proportion.

Hope this helped. Pls mark me the BRAINLIEST!

Please help me. Mark me the branliest.

Topic: Percentage

Q1) 80% of a dog's mass is equal to 24% of the mass of a lion. If the mass of the lion is 105 kg more than the mass of the dog, find the total mass of the dog and the lion.

Answers

To solve this problem, let's denote the mass of the dog as D and the mass of the lion as L.

We are given that 80% of the dog's mass is equal to 24% of the lion's mass. Mathematically, this can be expressed as:

0.80D = 0.24L

We are also given that the mass of the lion is 105 kg more than the mass of the dog:

L = D + 105

We can use these two equations to find the values of D and L.

Substituting the value of L from the second equation into the first equation:

0.80D = 0.24(D + 105)

Now, let's solve for D:

0.80D = 0.24D + 0.24(105)

0.80D - 0.24D = 25.2

0.56D = 25.2

D = 25.2 / 0.56

D ≈ 45

Now that we have the value of D, we can find the value of L by substituting it back into the second equation:

L = 45 + 105

L = 150

Therefore, the total mass of the dog and the lion is:

D + L = 45 + 150 = 195 kg

So, the total mass of the dog and the lion is 195 kg.

Person above is correct

Which statement is true about milliliters and kiloliters?
a. There are 1,000,000 milliliters in a kiloliter.
b. There are 1,000,000 kiloliters in a milliliter.
c. There are 1,000 milliliters in a kiloliter.
d. There are 1,000 milliliters in a kiloliter.

Answers

The correct statement is a. There are 1,000,000 milliliters in a kiloliter.

A kiloliter is a unit of volume equal to 1,000 liters. One liter is equal to 1,000 milliliters. Therefore, one kiloliter is equal to 1,000 x 1,000 = 1,000,000 milliliters.

There are 1,000,000 milliliters in a kiloliter.

I struggle a lot with pre-algebra pls help

Answers

Answer:

Polygon B is similar to Polygon A.

Step-by-step explanation:

Polygon B has a scale factor of 2, because Polygon B looks identical to A, except the measurements are twice as large.

How to solve this? WILL GIVE BRAINLIEST

Answers

8x-10=6x
8x-6x=10
2x=10
X/2 10/2 = x=5

X=5 that will be your answer

pls help with this question.

Answers

Answer:

Step-by-step explanation:

1) 4 1/2 x 2/3 (change the 4 1/2 to an improper fraction so it becomes 9/2)

Then it is 9/2 x 2/3 and you multiply across. The answer is 18/6 which is simplified to 3 cups.

2) 2/5 x 2 1/3 -> 2/5 x 7/3 = 14/15

3) 3 1/2 x 1 1/3 -> 7/2 x 4/3 = 28/6 = 4 4/6 = 4 2/3 ft tall

1) 5 / 1/3 When dividing with a fraction, you have to multiply by the reciprocal of the second fraction. So the 1/3 becomes 3/1 and now it is 5 x 3/1 which is 15/1. 15 muffins

2) 1/2 / 4 -> 1/2 x 1/4 = 1/8 of the original package

3) 8 / 1/4 -> 8 x 4/1 = 32/1 = 32 apple pieces

Correct answer is: 32 apple pieces

I NEED HELPPPP
Match the following equation to the correct situation.

$6.50(c + 18) = $6.50c + $117.00

A. The amount of zoo admission for $6.50 more than c and $117.00.

B. The cost of a birthday package at the theater with a base cost of $117.00 plus $6.50 per child.

C. The amount for movie tickets for c adults when the cost is $6.50 more than $117.00 each.

D. The cost of attending a concert for c groups of people for $6.50 each.

Answers

Answer:

Step-by-step explanation

hello you don't know how to do this question, well you are very quite not smart

₺737373737272+227272727>|]€]$]$_:25

Pasqual uses 645.6 quarts of water in 7 days. Suppose he uses the same amount of water each day. About how much water does Paqual use each day?

Answers

Answer:

92.228

Step-by-step explanation:

He uses around 92.228 quarts of water each day, take the amount of water used in the 7 days and divide by 7 :)

7th grade math I'll give brainliest

Answers

Answer:

Step-by-step explanation:

Rise over run is the slope, m

m=2/5

a) the slope is 2/5 = .4 which is below the boundary guideline. So no this is not with in carpenter's guidelines

b) the image below show a line with slope 2/5 but with intercept 3

c) the stairs can be draw on the line with rise 2 run 5 from the line. see image

d)equation is in image

a) count the squares

horizontal distance =3

vertical distance =3

b) slope is vertical distance over horizontal distance so m= 3/3 =1

help quickly please!! :(

Answers

I believe the answer is x=8. I believe i could be wrong so please correct me if so, Hope this helps :)

Please solve QUICKLY

Answers

Answer:

Step-by-step explanation:

It isn't B because the point does not start at 600 and it is not A because it shows the entire decrease of the mass in one millennium. The correct answer is c.

Michael Can skateboard 100 feet in 5.4 seconds how fast can Michael skateboard in miles per hour?

Answers

It is equivalent to 12.63 MPH Roughly :)

ASAP HELP NEEDED BRAINLIEST TO WHO IS CORRECT!

A eyeglasses store is checking their inventory. The table shows the relationship between the number of days since the opening of the eyeglasses store and the total amount of sunglasses in their inventory.

Sunglasses Inventory

Number of Days Total Amount of Sunglasses

2 52

5 46

7 42

10 36

Which graph shows the relationship given in the table?

Answers

Graph 3, the number of days stated on the graph is directly equal to the total amount of sunglasses.

The answer is graph 3.
Explanation

I need some help for this and the graph won’t let you use decimals as the answer. Tip: 1/3 = 0.3
.

Answers

Answer:

$\large\begin{array}{|c|c|}\cline{1-2}x&y\\\cline{1-2}6&2\\\cline{1-2}12&4\\\cline{1-2}18&6\\\cline{1-2}\end{array}$

See attachment for the graph of the equation.

Step-by-step explanation:

Given equation:

$y=\dfrac{1}{3}x$

To complete the table, find the corresponding values of y by substituting each given value of x into the equation.

$x=6 \implies y=\dfrac{1}{3}(6)=\dfrac{6}{3}=2$

$x=12 \implies y=\dfrac{1}{3}(12)=\dfrac{12}{3}=4$

$x=18 \implies y=\dfrac{1}{3}(18)=\dfrac{18}{3}=6$

Therefore the completed table is:

$\large\begin{array}{|c|c|}\cline{1-2}x&y\\\cline{1-2}6&2\\\cline{1-2}12&4\\\cline{1-2}18&6\\\cline{1-2}\end{array}$

To graph the equation, plot the ordered pairs on the given coordinate plane:

(6, 2)(12, 4)(18, 6)

Draw a straight line through the points. (See attachment).

(6,2),(12,4),(18,6) would be correct

8(5-2x)=24

Solve x. Pls show working

Answers

distribute the terms

-16x+40=24

subtract 40 from both sides

-16x - -16

divide both by 16

x = 1

First multiply 8 times 5 and 8 times -2x since 5 and to -2x our in the parentheses. Now you have 40-16x=24. Subtract 40 from both sides to get -16x=-16. Finally divide both sides by negative 16 to get x alone. The answer is x=1. Remember that whatever you do on one side you must do to the other side.

Find 250% of 18. Show your work or explain how you arrived at your answer.
Please keep the explanation simple

Answers

Answer: 45

100% of 18 = 18

50% of 18 = 9

18 + 18 = 36 = 200%

36 + 9 = 45 = 250%

Answer: 45

Step-by-step explanation:

To find a percentage of a number, like what we're being asked to do, you multiply the number ( 18 in this case ) with the decimal form of the percentage. So, since we know 100% is equal to 1, 150% is equal to 1.5 and so on, 250% must be equal to 2.5. Since we know this, we now do:

2.5 x 18 = 45.

The bill at a restaurant comes to $30.00.

How much will the total cost be if you want to leave a 25% tip and tax is 5%?

Answers

The total cost will be $39.00
The tip will cost $7.50
The tax will cost $1.50
7.50 + 1.50 + 30.00 = 39.00

total cost would be $39.00

Order these numbers from least to greatest. 5.1072, 5.27, 5.207, 5.1

Answers

5.1, 5.1072, 5.207, 5.27

hope this helps!

Answer:

5.1,5.1072,5.207,5.27

Jaime says, "To find 6 x 8, I can use the facts for 5 x 4 and 1 x 4." Do you agree? Explain.

Answers

Answer:

Step-by-step explanation:

6x8 48 and 1x4 is 4 5x4 is 20 so it the answer you see

no because 6x8=48 and if you do 5x4 plus 1x4 it’s equal to 24 not 48

Determine the intercepts of the line.

Answers

Answer:

X intercept- (4.333,0)

Y intercept--(0,-13)

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

pls ill give brainelist

Answers

Answer:

Vertical angle

Step-by-step explanation:

Answer:

C. Alternate exterior.

Step-by-step explanation:

we know it can't be A. supplementary because that would be angle 2 and 4 or 1 and 3 (etc). It cant be B. verticle because that would be like 6 and 7 or 2 and 3 (etc). and it cant be D. Alternate interior angles because that would be 3 and 6 or 5 and 4 (etc). so the answer is C. alternate exterior.

Help pls for brainlest?

Answers

Answer:

C: Water runs off into lakes and streams

Step-by-step explanation:

I Hope It Helps

Answer:

percipatation falls

Step-by-step explanation:

Condensation is the process by which water vapor in the air is changed into liquid water. ... These clouds may produce precipitation, which is the primary route for water to return to the Earth's surface within the water cycle. Condensation is the opposite of evaporation.

Can someone pls help?!

Find the product of........ The rest of the question is down below.

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Answer: The answer is −2x+14 just take away the parentheses.

What type of function is this?

Answers

Quadratic function because it’s a u shape

Quadratic function because of the U shape that took form on the graph

Inverse operations solving for X, question in picture attached. Whoever answers I will give brainy

Answers

Answer:

The Correct answer is C

cube both sides

I believe the anwer is c

hope this helps you

HELP ASAP!! What is the difference between composition and decomposition? Can you use them to find the area of a polygon?

Answers

Answer:

Composing numbers refers to joining groups or a set of numbers to make another number, while decomposing numbers means to break numbers down to their component parts. Yes, you can use composition and decomposition to find the area.

Step-by-step explanation:

Find the radius of the circle.
Circumference = 18.84 yd
a. 3 yd
b. 59.16 yd
c. 6 yd
d. 118.32 yd

what's the answer??

Answers

Answer:

A. 3yd

Step-by-step explanation:

There are two formulas that can be used for the circumference of a circle:

c = πd and c = 2πr

Since we want to solve for the radius, let's use c = 2πr

The circumference, 'c', is 18.84 inches

Since 'π' is an irrational number, we use its approximation of 3.14

We are trying to solve for 'r', which is the radius

The circumference, 'c', is 18.84 inches

Since 'π' is an irrational number, we use its approximation of 3.14

We are trying to solve for 'r', which is the radius

Plugging in, we get:

18.84 = 2(3.14)r

Since 'π' is an irrational number, we use its approximation of 3.14

Notice there are the same amount of decimal places (two!) in the answer as the combined amount of spaces in the numbers being multiplied!

18.84 = 6.28r

The goal is to isolate and solve for 'r', which is the radius

18.84/6.28 = 3

So we get "3 = r", which means the radius is 3 inches!

plsss help!!

150 students in Years 10 and 11 visit a school canteen.

Some students have packed lunches.

Some students have a cooked lunch.

56 out of the 89 students who have packed lunch are in Year 10.

There are 72 Year 11 students.

Work out how many Year 10 students have a cooked lunch.

Answers

16 students from year 10 have cooked lunches

What the other person said

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!

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Late Tang Confucian scholars condemned Buddhism for all the following except Select one: O a. being a belief system of foreign origin. O b. its lack of emphasis on family loyalty. O c. its reverence for ancestors. O d. its rejection of worldly concerns.O e. the way it encouraged women to participate in politics. A person studying economics chooses to buy an economic textbook for their class, even though it means theycannot afford to buy a video game they want. This shows an understanding ofO goods.O services.O production.consequences and tradeoffs. Particle 1 is a point charge with q=3.3 C. It enters an electric field with field strength of 5.6 N/C. What force does Particle 1 experience? Drag the labels to the table. Each label can be used more than once, but not all labels will be used.Choose the justification for each step in the solution to the equation 6x - 9 = 45.StepStatementsReasons6x - 9 = 45given26x - 9 + 9 = 45 + 936x = 545x = 9addition property of equalitysubtraction property of equalitymultiplication property of equalitydivision property of equalitysimplification Drag each tile to the correct box.Create the sequence showing the procedure followed by the accountant to record the companys transactions.example answer: ACEBD or CDBAE Which is one of the BEST ways to stick to fitness goals?A. Do it no matter how you feel or what is going on in your life.B. Set the easiest goal that you can think of so you can definitely meet it.C. Be a little flexible; if your original goal will not work, do something similar.D. If you miss a day or fall short, you should berate yourself for lack of commitment. WILL GIVE BRAINLIEST AND 35 POINTS Solve this system of equations. [tex]\left \{ {{3x+y=-21} \atop {y=4x}} \right.[/tex] what information would a scientist need first to analyze several samples for one str locus? Most feral children who receive little to no human interaction during the first several years of their lives can still become fully functioning independent adults as long as they receive therapy.TrueFalse Suppose you are a gold miner in California in 1849. You have your tools in one hand. Can you use your free hand to carry a 4-liter bucket full of gold dust? The density of gold is 19.3g/cm^3. Use unit analysis to determine whether the bucket is too heavy to carry. How many moles is 7.78 x 1024formula units of MgCl2? Exhibit 5.1 illustrates how a persons drives and needs resultin decisions and behavior. Explain where the expectancy theory ofmotivation fits into this model. What does 8.296 0.8 equal How did Kievan Rus develop in the 9th century and in what ways was it influenced by the Byzantine Empire instead of Western Europe? 5. A puzzle is shown below. Which of the following is the closest to the res of the state portions of the puzzle? 2 cm I 2 cm A. 18 cm2 B. 72 cm2 C. 24 cm2 D. 60 cm On page 55, Paul explains soldiers relationships to the earth: he stifles his terror and his cries in her silence and her security. The verb stifle means to hold back; to end or quell by force; crush. Paul could also have used the verb quiet, which means to make quiet; to cause to become calm. Consider the connotations of both words, and select the statement below that best captures the effect of the replacement of the word stifle with quiet. Explain how the peahen's nesting behavior is an example of a reproductive strategy. sin^2 - seccos + cos^2 = 1. Mrs. Lee cut a pie into 6 pieces. Shegave each of her 4 children apiece of pie.If Mrs. Lee divided the entire pie equallyamong her children, what fraction ofthe remaining pieces of pie didMrs. Lee give each child?A 14 piece of pie piece of pie13piece of pie1D piece of pie4B on the income statement, which of the following would be classified as a period cost? A) Direct Labor B) Direct Material C) Promotion Expense D) Inventory Carry Expense