PLEASE HELP I WILL GIVE 99 POINTS

Aida applied the distributive property to write the equivalent expressions below.

15 + 21 = 3(4 + 8)

What is Aida’s error?
Aida used 3 as the factor, which is not common to 15 and 21.
Aida did not correctly divide by the common factor to get (4 + 8).
Aida did not apply the correct operations to the expressions.
Aida wrote two expressions that are not equivalent.

Answers

Answer 1
Aida did not correctly divide by the common factor to get (4+8).
Answer 2
aida did not correctly divide by the common factor to get (4+8)

Related Questions

How do you divided 14.28 /4.2

Answers

you dived 14.28/4.2 by taking the decimal out and when you get the answer put it back
14.28 divided by 4.2 = 3.4

How do you solve this please help

Answers

Since a straight line is 180 degrees, ∠ACD and ∠ACB add up to 180 degrees. Therefore, ∠ACB=180-∠ACD=180-5x-5=175-5x. As the angles in a triangle add up to 180 degrees, ∠A+∠B+∠ACB=x+2x+15+175-5x=180=-2x+190. Subtracting 190 from both sides, we get -10=-2x. Next, we can divide both sides by -2 to get x=5 and plugging that into 2x+15=∠B, ∠B=2*5+15=25

A rental company charges $15 plus $4 per hour to rent a bicycle. If Margie does not want to spend more than $27 for her rental, solve an inequality to determine how many hours she can rent the bicycle and not spend more than $27. Interpret the solution.

Answers

The number of hours she can rent the bicycle and not spend more than $27 is 3hours.

How to write an inequality equation?

Total amount Maggie wants to spend = $27Fixed charge = $15Hourly charge = $4Number of hours = x

The inequality;

15 + 4x ≤ 27

4x ≤ 27 - 15

4x ≤ 12

x ≤ 12/4

x ≤ 3 hours

Therefore, the number of hours she can rent the bicycle and not spend more than $27 is 3hours

Learn more about inequality:

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State whether the graph of each linear relationship is a solid line or set of unconnected points explain your reasoning the relationship between the number of $12 DVDs you buy and the total cost

Answers

Hello! The graph of each linear equation is a set of unconnected points. The thing is that with a solid line, you can have things in-between whole numbers. However, you can’t have a fraction of a movie. Dotted points show that you can’t have in between values and that only whole quantities count.

the length of a cube is x centimeters. If x is an integer why can't the volume of the cube equal 15 cm cubed

Answers

Final answer:

The volume of a cube with a side length of x centimeters cannot equal 15 cm³ when x is an integer.

Explanation:

The question asks why the volume of a cube with a length of x centimeters cannot equal 15 cm³ when x is an integer. In order to calculate the volume of a cube, we use the formula V = s³, where V represents the volume and s represents the length of a side. If x is an integer, the length of the cube can be any integer value.

However, when we substitute x = 15 into the formula, we find that the volume of the cube would be 15³ = 3375 cm³, which is not equal to 15 cm³. Therefore, the volume of a cube with a side length of x centimeters cannot equal 15 cm³ when x is an integer.

help !!! i dont understand !

Answers

If the top of the fraction is less than the bottom, the fraction is less than one. However, Federico has raised 11/10 of what he needs and the top is bigger than the bottom so he’s raised the most money.
marissa has raised the most money don't ask me how I got it but trust me













jks

The length of a rectangle is 5cm more than its width. The perimeter of the rectangle is 46cm. Find the width and the length

Answers

Final answer:

The width of the rectangle is 9 cm, and the length is 14 cm.

Explanation:

To find the width and length of the rectangle:

Let's assume that the width of the rectangle is x cm. According to the problem, the length of the rectangle is 5 cm more than its width, so the length would be x + 5 cm.

The perimeter of the rectangle is 46 cm. The formula for the perimeter of a rectangle is P = 2(w + l), where P is the perimeter, w is the width, and l is the length.

So, we can set up the equation: 46 = 2(x + (x + 5)).

Simplifying the equation gives us: 46 = 2(2x + 5).

Expanding the equation further gives us: 46 = 4x + 10.

Subtracting 10 from both sides of the equation gives us: 36 = 4x.

Dividing both sides of the equation by 4 gives us: x = 9.

Therefore, the width of the rectangle is 9 cm, and the length is 9 + 5 = 14 cm.

Final answer:

To find the width and length of the rectangle, set up an equation using the given information and solve for x. The width is 9 cm and the length is 14 cm.

Explanation:

To solve this problem, we can set up an equation using the information given. Let's assume the width of the rectangle is x cm. Since the length is 5cm more than the width, it will be x + 5 cm. The perimeter of a rectangle is found by adding all its sides, so we have:

2(x + x + 5) = 46

Simplifying this equation gives us:

4x + 10 = 46

Subtracting 10 from both sides:

4x = 36

Dividing both sides by 4:

x = 9

Therefore, the width of the rectangle is 9 cm and the length is 9 + 5 = 14 cm.

Order the numbers from least to greatest 7.8 7.88 7.78 7.87 7.77

Answers

7.77, 7.78, 7.8, 7.87, 7.88
7.77, 7.78, 7.8, 7.87, 7.88

36,204+40,918 estimate then find the sum

Answers

36, 204 + 40,918 = 77, 122
Answer:
_____________________
1) Estimate the sum:
 __________________
36,000 + 41,000 = 77, 000 (estimated sum).
___________________________________
2) Find the sum:
____________________________________
 36,204 + 40,918 = 77, 122 (calculated sum).
____________________________________

What is 5 5/8 + 6 1/4

Answers

11.875 in decimal form. 
It would be 11 and 7/8 because 5+6=11 and you convert 1/4 to 2/8 so then you do 5/8+2/8=7/8 and 11+7/8=11 and 7/8

The coordinates of quadrilateral EFGH are E(4, 8), F(1, 2), G(6, 1), and H(8, 8). The image of EFGH under dilation is E'F'G'H'.

If the coordinates of vertex E' are (1, 2), what are the coordinates of vertex H'?
No pic is attached

A) (2, 8)
B) (5, 6)
C) (2, 2)
D) (4, 8)

Answers

the answer is (2,2) because the dilation is by 1/4 

E goes from (4,8) to (1,2) which equals a 1/4 scale factor ( put lower number over higher number so X = 1/4 and Y = 2/8 which reduces to 1/4)

 so H needs to be reduced by 1/4

8/4 = 2

 so new coordinate is (2,2)

 Answer is C

Arliss has two pieces of carpet runner. One is 2 1/3 yards long and the other is 3 1/3 yards long. She needs 10 yards of carpet runner altogether. How much more does she need to buy?

Answers

Arliss needs 5 1/3 more carpet to get a total of 10 yards of carpet.

The correlation coefficient r between the size of a lake in square miles, x, and the yearly number of registered boaters, y, is 0.743. What percent of the variation in the number of yearly boaters can be explained by differences in lake sizes? A.74.3% B.55.2% C.44.8% D.37.2% Algebra

Answers

The variation in any sample group is simply the square of the correlation coefficient, that is:

variation = r^2

 

Therefore given an r value, we can simply directly calculate for variation percentage.

 

variation = (0.743)^2

variation = 0.552 or 55.2%

 

Answer:

B. 55.2%

Pine Bluff Middle School is having its annual Spring Fling dance, which will cost $400. The student treasurer reported that the dance fund has $ 75 left over from last year. Each ticket to the dance costs $4. Let t represent the number of tickets sold. Write an inequality to determine how many tickets must be sold to pay for this year's dance.

Answers

First you subtract the current fund from the total cost 
400 - 75 = 325
Then you divide 325 by the price of the tickets 4, for the number of tickets needed
325/4= 81.25
Since you can't sell a quarter of a ticket, 81.25 is rounded up to 82
x ≤ 82

8.5+4(1-2.5k)=24.5 round to the nearest hundredth

Answers

Hi there! 

Your question: 

8.5 + 49(1-2.5k)=24.5

My answer: 

8.5 + 4(1-2.5k) = 24.5 >>>>>>> first, you have to distribute

8.5 + 4 - 10k = 24.5 >>>>>>>> now, we are going to combine like terms.

12.5 - 10k = 24.5 >>>>>> now, we are going to subtract 12.5 on both sides 

-10k = 12 >>>>>>>>> finally, divide -10 on both sides

k = -1.2


Hope this helps you!


Your Problem:
8.5+4(1-2.5k)=24.5
1st step: subtract 8.5 from both sides
4(1-2.5k)=24.5-8.5
4(1-2.5k)=16
2nd step: Divide both sides by 4
(1-2.5k)=16/4
(1-2.5k)=4
3rd step: Opening up the parentheses
1-2.5k=4
4th step: Subtract 1 from both sides
-2.5k=4-1
-2.5k=3
4ht step: divide both sides by -2.5
k=-1.2

Combine the like terms to make a simpler expression:

3z+2+(-5z)+6

Answers

-2z+8 
Combine Like Terms:=3z+2+−5z+6=(3z+−5z)+(2+6)=−2z+8
Hello There!

You would get -2z + 8

Hope This Helps You!
Good Luck :) 

- Hannah ❤

A store manager ordered 402 baseball caps and 122 ski caps estimate the total number of. Apps the manager ordered

Answers

If you meant estimate the total number of caps the manager ordered, its 524. Because 402+122=524. Now if it said Apps we need more detail to understand were does "Apps" come into play.
It is 525 hope that will help

a student teacher rectangular desk is 30 inches long and 18 inches wide the teachers desk is similar to the student desk and has a length of 50 inches what is the width of the teachers desk ?

Answers

Similar means that the student's desk and the teacher's desk is proportional. 


Simplify: 
Solve for x. 
50*3=5*x
x=30. in.
Added: 30 + 18 + 50 = 98






Hopefully this is correct, if not them sorry, Have a nice day~Nana!~

Does anyone know how to do 9 and 10 ???

Answers

9.2x-9<7
add 9 to both sides, 2x<16
divide both sides by 2, x<8
A.

10.n<5
-4n+11>-9 Subtract 11 from both sides
-4n>-20 then, divide both sides by -4
In these greather than less than equations, when you divide a negative by another negative, you must flip the sign 
so that would be, n<5
D
9)  2x - 9 < 7

Add 9 to both sides.

2x < 7 + 9

Simplify.

2x < 16

Divide both sides by 2.

x < 8

10)  Go through each answer choice & check.

a)  4n + 11 > -9

Subtract 11 from both sides.

4n > -9 - 11

Simplify.

4n > -20

Divide both sides by 4.

n > -5

(a) is incorrect.

b)  4n + 11 < -9

Subtract 11 from both sides.

4n < -9 - 11

Simplify.

4n < -20

Divide both sides by 4.

n < 5

(b) is incorrect

c)  -4n + 11 <-9

Subtract 11 from both sides.

-4n < -9 - 11

Simplify.

-4n < -20

Divide both sides by -4.

n > 5

(c) is incorrect

d)  -4n + 11 > -9

Subtract 11 from both sides.

-4n > -9 - 11

Simplify.

-4n > -20

Divide both sides by -4.

n < 5

(d) is correct

~Hope I helped!~

After the last stop on Mr. Tuttle’s route, the number of students on the bus is 3/4 of its full capacity. Once Mr. Tuttle has completed picking up all the students on his route, if no students have exited the bus, how many students could the remaining empty seats accommodate?

Answers

From a reliable source, the maximum capacity of a standard bus used as school bus is 72 students. Because the bus that Mr. Tuttle drives is already 3/4 full, only 1/4 of the capacity is unoccupied. With this, the number of the empty seats is calculated by multiplying 72 by 1/4 as shown below.
        empty seats  = (1/4)(72) = 18

Therefore, the bus could have accommodated 18 more students.

write 3x+(2-4x) in standard form

Answers

3x+(2-4x) in standard form is 1x.

I think the answer would be -1 + 2


solve for x 9x>-18 answer must be simplified

Answers

Divide both sides by 9 to go from this
9x > -18
to this
x > -2

On the left side the 9x becomes 9x/9 = 1x = x
on the right side we have -18/9 = -2

Answer is x > -2

A shopper purchased 4 tables and 2 chairs for $200 and 2 tables and 7 chairs for $400. What is the cost of each table and each chair? And can you please explain the process using substitution please? Thanks.

Answers

4t+2c=200
2t+7c=400

I will solve for c in terms of t first
4t+2c=200
2c=200-4t
c=100-2t

Then I will substitute this in for c in the second equation to make it single variable
2t+7c=400
2t+7(100-2t)=400
2t+700-14t=400
300t=12
t=25 
Tables cost $25 each

Plug t back into one of the ORIGINAL equations to find the cost of chairs
4(25)+2c=200
100+2c=200
2c=100
c=50
Chairs cost $50 each

Hope this helps! :)


What is 0.8281 rounded to the nearest whole number?

Answers

0.8281 rounded to the nearest whole number is 1

How do you solve the system of linear equation by multiplying?

5x - 2y = 11
3x + 5y = 19

Answers

5x-2y=11 X=(11+2•2)#5
5x=11+2y X=15#5
X=(11+2y)#5 X=3

3x+5y=19
3•(11+2y)#5+5y=19
(33+6y)#5+5y=19
(33+6y+25y)#5=95#5
33+31y=95
31y=62
Y=2
#significa divisão
•significa multiplicação

The solution set for the system of equations is (3, 2).

What is system of equations?

In mathematics, a set of simultaneous equations, also known as a system of equations or an equation system, is a finite set of equations for which common solutions are sought

Given is the system of equations -

5x - 2y = 11

3x + 5y = 19

Multiply Eq.{1} by 3 and Eq.{2} by 5, we get -

15x - 6y = 33

15x + 25y = 95

Now, performing Eq(2) - Eq(1), we get -

15x + 25y - 15x + 6y = 95 - 33

31y = 62

y = 2

x = 11 + 2y/5

x = 15/5

x = 3

Therefore, the solution set for the system of equations is (3, 2).

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Why can I not subtract this pls help

Answers

To subtract this number you should break it down first. Try subtracting $25.00 -12.75 and then take that answer and subtract it by $8.50. 
the answer would be 3.75 because you would subtract 12.75 from 25.00 which would be 12.25, then you would subtract 8.50 from 12.25 and you would get 3.75.

25.00 - 12.75 = 12.25
12.25 - 8.50 = 3.75 

When can you carve out time to study each month or each week

Answers

When you have nothing to do or when you finish your homework then take a break then study then take a break then study. Or don't play video games or watch tv and just study for like 60 minutes and have breaks after every 20 minutes... hope that helps. Also, another way is to tell someone like a roommate parent or sibling to yell at you until you go into your room and study.
When you have nothing to do or when you finish your homework then take a break then study then take a break then study. Or don't play video games or watch tv and just study for like 60 minutes and have breaks after every 20 minutes... hope that helps. Also, another way is to tell someone like a roommate parent or sibling to yell at you until you go into your room and study.

The number of the day is 936,165

Answers

936165 

900000 + 30000 + 6000 + 100 + 60 + 5 (expanded form)

nine hundred thirty six thousand one hundred and sixty-five (word form)

hope this helps

In his will, Mr. Adams left 25% of his estate to his wife and unevenly divided the balance between his son and his daughter.If the son received $36,000 as his share, what was the total value of the estate?

Answers

$108,000 I'm pretty sure

Help! Eugene wants to buy jeans at a store that is offering a $10 discount on every item.the tag on the jeans is marked 50% off.the original price is $49.98.find the final cost if the 50% percent discount is applied before the $10 discount. B .find the final cost if the $10 discount is applied before the 50% discount

Answers

A)so first you have it discounted by 50% so the jeans are not 24.99(49.98/2). Now discount it again by 10 dollars and you get 14.99(24.99-10).

B)so first you have it discounted by 10 dollars so the jeans cost 39.98(49.98-10). Now discount it again by 50% and you get 19.99(39.98/2).
The final cost is 19.99. Hope this helps
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