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). 

She should have written: (5 + 7)

It would look like this: 15 + 21 = 3(5 + 7)

This make both sides equivalent: 15 + 21 = 15 + 21 Yay!

Hope this helps!
and May the Force Be With You

-Jabba

Related Questions

Find the length of XZ:

Answers

it's an equilateral triangle
5/2x -5 = 2x
5x - 10= 4x
5x-4x =10
x=10

so XZ equals
5/2×10 -5 = 25-5 = 20units

Calvin cleans 3/5 of his bathroom with 1/3 of a bottle of cleaning solution.At this rate, what fraction of the bottle of cleaning solution will Calvin use to clean his entire bathroom?

Answers

3/5 divided by 1/3= 0.2 or 1/5

5/9 fraction of the bottle of cleaning solution will Calvin use to clean his entire bathroom.

What is a fraction?

A fraction is a numeral that represents a rational number.

Let a and b are two number, then their fraction can be represent as a/b.

Given that,

Calvin cleans 3/5 of his bathroom with 1/3 of a bottle of cleaning solution,

This implies that,

3/5 fraction of the whole bathroom takes 1/3 of the bottle

The entire bathroom will take= 1/3×5/3 = 5/9 of the bottle.

A 5/9 fraction will be used to clean the entire bathroom.

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9 is 12 percent of which number

Answers

I guess the answer would be 90
The answer is:  "75" .
____________________________________________
Explanation:
____________________________________________
9 = (12/100) x 

Multiple each side of the equation by "100" ;

to get:  900 = 12x ;

12x = 900 ;

Divide each side of the equation by "12" ; to get:

12x/ 12 = 900/ 12 ;

x = 900/12 ; 

x = 75 .
_______________________________________________

Which expression shows the distance on the number line between −3 and −10 ?

A. |−10−3|

B. |−3−(−10)|

C. |−3+(−10)|

D. |−3−10|

(P.S. There Is No Number line On The Test)

Answers

The answer is B to the problem. B/c difference is 7 on the number line.

Answer: B

Step-by-step explanation:

Troy’s favorite ice cream has 540 calories per serving. If 5/8 of the calories come from fat how many calories come from fat?

Answers

337.5. multiply 5/8 and 540.
335.5 calories
540/8 = 67.5
67.5 x 5 = 335.5

Will give BRAINLIEST if right!
Write the number in standard notation.
7.21×10^−3

721,000

72,100

0.000721

0.00721

Answers

To convert a number from scientific notation to standard form, consider 1.5625 x 10^4. First, focus on the exponential number, which is 10^4. Multiply the base number, which is 10, by itself the number of times indicated by the exponent, which is four. You would do that like this:

10 x 10 x 10 x 10 = 10, 000

Plug the product -- which is 10,000 -- into the original equation to get this:

1.5625 x 10,000 = 15, 625

Therefore, the standard form of this number is 15,625.

For a number in expanded form, convert the number, using basic addition. For example, consider the expanded number 10,000 + 2000 + 100 + 10 + 9. Add up these numbers to get the standard form. Your equation would look like this:

10,000 + 2,000 + 100 + 10 + 9 = 12,119

Therefore, the standard form of the number is 12,119.

the last one since negative standard notation is just getting smaller that gets rid of the first and the second but if you need to move the decimal three places you would do behind the 7 and two more creating two zeros in its place.

Ten identical cards are numbered 1 to 10. The cards are shuffled. One card is selected at random. what is the probability that the number written on it is:

10?
5?
Not 10?
An Odd Number?
A number less than 4?
A number greater than 7?


Answers

To solve these, basically find out how many numbers satisfy your requirment, then divide that number by 10. Simplify your fraction and you have your probability.

probability of getting a 10: 1/10
probability of getting a 5: 1/10
probability of not getting 10: 9/10
probability of getting an odd number: 5/10
probability of getting a number less than 4: 3/10
probability of getting a number greater than 7: 3/10

Hope this helps, and muchas luck on your math!

Calculate 1/4+(-5/12)+(-2/3)

Answers

The answer would be 0.8333333333.

It is clear the answer would be repetitive.

So the final answer would be 0.83.


-5/6 is your answer
1. Write all numerators above the common denominator.
2. Use addition and subtraction rules.
3. Rewrote the fraction.
4. Simplify

how do you graph 4x=2y-3

Answers

The slope-intercept form is y=mx+b y = m x + b , where m m is the slope and b b is the y-intercept.
Hello, ChaseAnelson200, The answer would be Graph using the slope and y-intercept.Slope: 2 or Y-Intercept: 3/2.








what's 7xb +2ya +7xb

Answers

14xb + 2ya is your answer don't report this but if you use math you can get the answer like i did
Simple!

First, Combine like terms:

7xb + 7xb + 2ya

= 14xb + 2ya or  2(7bx + ay)

You use the length of your shoe to measure your room. Your shoe is 9.75 inches long. You walk across the room, heel to toe, and count 17.5 shoe lengths.

About how long is your room in inches?

Answers

I’m asking the same question please help us!!! Thank you

the length of the room is  170.63 inches.

The length of the room in inches is [tex]\( 9.75 \text{ inches/foot} \times 17.5 \text{ shoe lengths} = 170.625 \text{ inches} \), or approximately \( 170.63 \) inches.[/tex]

To calculate the length of the room, we first need to determine the total distance traveled by walking across the room, heel to toe, in terms of shoe lengths, and then convert that distance into inches.

Given:

- Length of shoe = 9.75 inches

- Number of shoe lengths walked across the room = 17.5 shoe lengths

First, we find the total distance walked in inches:

[tex]\[ \text{Total distance} = \text{Length of shoe} \times \text{Number of shoe lengths} \][/tex]

[tex]\[ \text{Total distance} = 9.75 \text{ inches/shoe} \times 17.5 \text{ shoes} \][/tex]

[tex]\[ \text{Total distance} = 170.625 \text{ inches} \][/tex]

Rounded to two decimal places, the length of the room is approximately 170.63 inches.

Here’s a bit more detail on each step:

1. Convert Shoe Length to Inches: Since each shoe length is 9.75 inches, we use this conversion factor to turn the shoe lengths into inches.[tex]\( 17.5 \) shoe lengths \(\times\) \( 9.75 \) inches/shoe = \( 170.625 \) inches.[/tex]

2. Round Off: We round off the final answer to two decimal places, giving us a room length of approximately \( 170.63 \) inches. This rounding is common in measurements where precision beyond two decimal places isn't necessary.

3. Explanation Summary: By multiplying the length of the shoe by the number of shoe lengths walked across the room, we can accurately calculate the total distance traveled and thus determine the length of the room.

complete question

You use the length of your shoe to measure your room. Your shoe is 9.75 inches long. You walk across the room, heel to toe, and count 17.5 shoe lengths.

About how long is your room in inches?

what is the reciprocal of 3 and 1/5

Answers

1/3 and 5 because 3/1 is three and 1/3 is the opposite while 1/5 is 5/1 which is 5.
To find the reciprocal of 3 and 1/5, first you have to put it into a improper fraction.

3=5/5*3=15/3
15/3+1/5=16/3

3 1/5=16/3

To find the reciprocal, you simply flip the top and the bottom.
3/16

Hope this helps!
Your fortune is "Your present plans are going to succeed."

Plot the line for the equation on the graph.

y−4=−1/4(x−5)

Answers

Answer:  we will rewrite the given equation y-4 =[tex]\frac{-1}{4} (x-5)[/tex] in slope intercept form.

so, we get

y =  [tex]\frac{-1}{4} x+\frac{21}{4}[/tex]

slope = [tex]-\frac{1}{4}[/tex]   and y-intercept = [tex]\frac{21}{4}[/tex]  

now, we have to make the table of x and y

now we consider different values of x to find the value of y corresponding values of x using equation y =  [tex]\frac{-1}{4} x+\frac{21}{4}[/tex]

   X             Y

  0              [tex]\frac{21}{4}[/tex]

  1               5

  2               [tex]\frac{19}{4}[/tex]

  3               [tex]\frac{18}{4}[/tex]

have a look at the attachment for graph.

Attached graph is having a downward-sloping line with y-intercept (0, 21/4) and a slope of -1/4. Equation: y = (-1/4)x + 21/4.

To plot the line for the equation y - 4 = -1/4(x - 5),

first rewrite it in slope-intercept form (y = mx + b), where 'm' is the slope, and 'b' is the y-intercept.

y - 4 = -1/4(x - 5)

Distribute the -1/4 on the right side:

y - 4 = (-1/4)x + 5/4

Move -4 to the right side by adding 4 to both sides of the equation:

y = (-1/4)x + 5/4 + 4

Combine constants on the right side:

y = (-1/4)x + 5/4 + 16/4

Combine fractions on the right side:

y = (-1/4)x + 21/4

Now  the equation in slope-intercept form (y = mx + b) where the slope (m) is -1/4, and the y-intercept (b) is 21/4.

To graph the line, follow these steps:

Plot the y-intercept point (0, 21/4).

Use the slope (-1/4) to find additional points. The slope -1/4 means that for every 4 units you move to the right,  go down 1 unit.

Draw a straight line passing through the points you plotted.

Here are a few more points you can use to plot the line:

When x = 0, y = 21/4.

When x = 4, y = 21/4 - 1 = 17/4.

When x = 8, y = 21/4 - 2 = 13/4.

Now, plot these points on the graph and draw a straight line passing through them.

The graph should look like a downward-sloping line.

Attached graph.

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Determine the x- and y-intercepts of the graph of y=−12x−4

Answers

 y=12x-4 
Geometric figure: Straight Line  Slope = 24.000/2.000 = 12.000
  x-intercept = 4/12 = 1/3 = 0.33333 
 y-intercept = -4/1 = -4.00000

Use prime factorization to find the LCM of 10 and 12

Answers

10=2*5          
12=2*2*3

they both have a 2 so we take that out and are left with 5,3, & 2. this can be confusing, but when there is a pair you use the number in the pair. so if there is a pair of 2, the number we use is a 2

2*2*5*3=60

Factor x4 y2 + x3 y3

Answers

your answer is xy^2(4+3y). if u need anything else just tell meh
↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓

Evaluate f(a-5) given f(x)=x to the 2nd power + 8

Answers

do u mean evaluate f(a-5) given f(x) = x² + 8?

if yes then
f(a-5) = (a-5)² + 8 = a²-10a +25 +8 = a²-10a +33

please help and explain if possible

Answers

divide it by 25 witch is the height then find the square root
[tex]5625 \div 25 = \sqrt{513?} [/tex]

Tom went to a store and spent 1/3 of his money. He went to a second store where he spent 1/3 of what remained and then had 12$ when he left. How much money did he start with?

Answers

Tom must have had 27 dollars to start with. 27 divided by three is 9.( We divide by three because he spent 1/3 of his original money) 27-9 is 18. 18/3 is 6. 18-6=12. So the answer 27 would fit.
Tom had $27 to start with

-4k + 3.6=7.8 solve the equation

Answers

-4k + 3.6 = 7.8

-4k + 3.6 (-3.6) = 7.8 (-3.6)

-4k = 4.2

-4k/-4 = 4.2/-4

k = -1.05

hope this helps

you have a 4x6 photo of you and your friend. You order a 5x7 print of the photo. Is the new photo similar to the original?

Answers

No because 4 times 6 =24 and 5 times 7 =35
Math wise no. 5×7 is a bigger form than 4×6, think of it like this, 4 squares up, and 6 squares side, same with the 5x7, its a bigger area and perimeter

How do you do Mental Division?

Answers

this is just an example hope it helps

Divide.Multiply & subtract.Drop down the next digit. t o. ) 5 8. Two goes into 5 two times, or 5 tens ÷ 2 = 2 whole tens -- but there is a remainder! t o. ) 5 8. - ...Divide.Multiply & subtract.Drop down the next digit. t o. 2 9. ) 5 8. - 1 8. Divide 2 into 18. Place 9 into the quotient.

A factory wanted to produce 7600 radios. At first, they planned to produce 600 radios each day. However, 8 days later, the remaining radios had to be produced in 4 days. How many more radios than originally planned had to be produced everyday?

Plz help!!! And show me how to obtain the result! :)

Answers

Its 600 radios per day, so you multiply 600 by 8 =4,800. Then the remainder would be 7,600-4,800 = 2,800. Then divide it by four to see how many would be made per day. 2,800 divided by 4 = 700. So the answer is 700. 

What does 3 divided by 5 equal to

Answers

0.6 is the answer.

Hope this helps!
3 divided by 5 equals 0.6

GL on whatever you are doing

can someone please help me with this ?

Answers

13. 1,6

18. -15,12

19. -7, 1/2

What is the first answer to the first question

Answers

All you need to do is do $23 divide by %13. (Which you are dividing 0.13 23.

Answer:

2.99

Step-by-step explanation:

write the place value of the underlined digit. round each number to the place of the underlined digit 2.348 *3 is underlined*

Answers

3 is in the tenths place when you round the number it would be 2.3.

A certain computer can perform 10^5 calculations per second. How many calculations can it perform in 10 seconds?

Answers

(10^5) x 10
100,000 x 10
1,000,000 or 10^6

Since it is being multiplied by another 10, it is 10 to the 6th power.

The no. of calculations computer can perform in 10 seconds will be equal to 10^6.

It is given that computer can perform 10^5 calculations per second.

We have to find no. of calculations to be performed by computer in 10 seconds.

What is the unitary method?

The unitary method is a method in which we find the value of a unit and then the value of the required number of units.

As per the question ;

A computer can perform calculations per second = 10^5

or

Calculations per second = 100000

So ,

The number of calculations to be performed in 10 seconds will be ;

= 100000 × 10

= 1000000

= 10^6

Thus , the no. of calculations computer can perform in 10 seconds will be equal to 10^6.

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It takes you 0.8 of a minute to read each page of your health book. It takes you 5.5 minutes to take the test at the end. How long will it take you to read 6.25 pages and also take the test?

Answers

It will take 10.5 minutes to read 6.25 pages and also take the test. You can solve this by multiplying 0.8 x 6.25 to find the amount of time to read the pages, and then add 5.5 to that answer.

Answer: It will take 10.5 minutes to  read 6.25 pages and  take the test.

Step-by-step explanation:

Hi, the expression that represents this situation is :

0.8 p + 5.5  

Since each reading each page of the health book takes 0.8 minutes, we have to multiply that time by the number of pages read (p) and add the time that spent on taking the test (5.5).

So, if the number of pages is p=6.25, we simply replace p in the expression.

0.8 (6.25) +5.5 = 5+5.5 = 10.5 minutes

It will take 10.5 minutes to read 6.25 pages and take the test.

solve for k. 2S=n(a+k)

Answers

It would be k= -a+2s/n
hope it helps!
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