MATHEMATICS MIDDLE SCHOOL

What precent does this change $16 to $4

Answers

Answer 1
Answer:

Answer:

Percentage change=75% .

Step-by-step explanation:

Given : $16 to $4    

To find:  What is the percent change .

Solution: We have given that   $16 to $4  .

Change = final value - initial value .

Change   = $16 - $4 

                  =$12

percentage change = (change)/(original value) *100

                               =    (12)/(16) *100

On dividing both number by 4

percentage change=. (3)/(4) *100

percentage change=. [tex]\frac{300}{4} .

percentage change=75% .

Therefore, percentage change=75% .
Answer 2
Answer: The percent change is 25%,because 4 divided by 16 is 0.25,and to convert a decimal to a percent,I multiplied 0.25 by 100,and the product,(the answer when 2 or more numbers are multiplied)was 25 and then i added the percent sign to 25,and so the percentage is 25%

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Jerry bought 4 DVDs for 25.20 what was the unit rate
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)Figure XYZ is reflected about the y-axis to obtain figure X’Y’Z’: A coordinate plane is shown Triangle XYZ has vertices X at 5 comma negative 4, vertex Y at 2 comma negative 4, and Z at 4 comma negative 1. Triangle X prime Y prime Z prime has vertices at X prime negative 5 comma negative 4, Y prime at negative 2 comma negative 4, and Z prime at negative 4 comma negative 1.

Which statement best describes the relationship between the two figures?

Figure XYZ is bigger than figure X’Y’Z’.
Figure XYZ is congruent to figure X’Y’Z’.
The measure of angle R is equal to the measure of angle S’.
The measure of angle R is equal to the measure of angle T’.

Answers

B. Figure XYZ is congruent to figure X'Y'Z'
All you are doing is rotating the figure so therefore you are not changing the shape or size.
Hope this helps you.

What is the unit rate for 183 miles in 3 hours????????

Answers

61:1 or 61 miles per hour! This is because 183 divided by 3 is 61!


Hope this helped!
Let me help you out!

A unit rate is something per one. 

That means that we also need to include units so that we could know what we are talking about. 

Basically divide, since this one is simple. 

183/3 = 61

61 miles per hour is the unit rate 

The range of the function f(k) = k2 + 2k + 1 is {25, 64}. What is the function’s domain? A. {5, 8} B. {-5, -8} C. {3, 8} D. {4, 7} E. {4, 8}

Answers

Answer:

Option D

The domain of the function is: {4, 7}

Step-by-step explanation:

We know that for polynomial functions like f(k) = k^2 + 2k + 1 its domain and its rank are all real numbers. However, for this case we are told that the function range is: the set {25, 64}

This means that the function is bounded.

Then the domain of f(k) are all possible values of k such that f(k) belongs to the interval {25, 64}.

To find the limit values of k then we do f(k) = 25

k^2 + 2k + 1 = 25

k^2 + 2k -24 = 0

Now we factor the expression:

(k + 6)(k-4) = 0

Then k = 4 and k = -6.

Now we do f(k) = 64

k ^ 2 + 2k +1 = 64\n\nk ^ 2 + 2k -63 = 0

We factor the expression:

(k + 9)(k-7) = 0

k = -9 and k = 7.

Finally we search between the options given an interval that matches.

The option that matches is option D {4, 7}

Finally, the domain of the function is: {4, 7}

Please help. The length of a rectangular garden is 70 yards longer than double the width. The perimeter of the garden is 290 yards. Find the width of the garden in yards !

Answers

Answer: width = 25 yards

Step-by-step explanation:

Andy wrote the following statement:"You can only draw one unique isosceles triangle that contains an angle of 55°."

Which statement is true?

A. Andy is correct, because only one unique triangle can be drawn with the given information.
B. Andy is incorrect, because more than one triangle can be drawn with the given information.
C. Andy is incorrect, because the triangle described cannot be drawn with the given information.
D. None of the above.

Answers

I believe it would be B. Because, an isoceles triangle is a triangle with 2 equal sides and 1 is not equal ... SO, more than one triangle could be drawn from this information. Because, 55 could be the uneven side for many triangles. So, B.  Andy is incorrect, because more than one triangle can be drawn from the given info. :)

B. Hope it helps!!! :)

Answer: B. Andy is incorrect, because more than one triangle can be drawn with the given information.


Step-by-step explanation:

Given: Andy wrote the following statement:

"You can only draw one unique isosceles triangle that contains an angle of 55°."

In isosceles triangle, there are two equal angles and one non-equal angle.

So, there is possibility of many isoceles triangles with 55°. It can be the measure of equal angles or non- equal angles.

hence, B is the right option. Andy is incorrect.

A model train has an engine and five boxcars. The engine is 14 cm long and each boxcar is 9cm long. There is a 1 cm space between cats. How long is the train

Answers

64cm :)
is the answer to you question
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