MATHEMATICS MIDDLE SCHOOL

A dog pen is 18feet wide. Its length
is twice the width.
What is the total
perimeter of the
pen?

Answers

Answer 1
Answer:

Answer:

108 ft

Step-by-step explanation:

18x2=36

36+36+18+18=108

Perimeter is the total added amount that surrounds the shape.
Answer 2
Answer:

Final answer:

The length of the dog pen is twice the width, hence 36 feet. Using the formula for perimeter of a rectangle, the total perimeter of the pen is 108 feet.

Explanation:

To calculate the perimeter of a rectangle, we use the formula 2(length + width). Given the width of the dog pen is 18 feet, and the length is twice the width, we first calculate the length: 2 * 18 feet = 36 feet. With that, we can now calculate the perimeter: 2(18 feet + 36 feet) = 2 * 54 feet = 108 feet. Therefore, the total perimeter of the dog pen is 108 feet.

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One number is missing from this data set18, 24, 22,30,26,___,25

The median of the data set is 24. What is the greatest possible value of the missing number

Answers

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Answers

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A restaurant claims to have served 352,000,000 hamburgers. What is this number in scientific notation?​

Answers

Answer:

3.52 × 10⁸

Step-by-step explanation:

Scientific notation is written in: Number that is in the ones place × 10^power.

Here, the number is 3.52, since 3 has the largest placement.

The power on the 10 should be the number of 0's on 352,000,000/3.52. That is 100,000,000. That number has 8 0's, so the power is to the 8th.

Putting that together, this number in scientific notation in 3.52 × 10⁸.

Evaluate -3+y/5 when y = –2.5

Answers

If you would like to evaluate - 3 + y / 5 when y = - 2.5, you can calculatethis using the following steps:

- 3 + y / 5 = -3 + (- 2.5) / 5 = - 3 - 0.5 = - 3.5 = - 7/2

Thecorrect result would be - 3.5.

_______________________
If you would like to evaluate (- 3 + y) / 5 when y = - 2.5, you can calculate this using the following steps:

(- 3 + y ) / 5 = (- 3 + (- 2.5)) / 5 = - 5.5 / 5 = - 1.1

The correct result would be - 1.1
When we have the value for the variable, all we have to do is apply the number to replace the variable, then solve.

-3+y/5 will turn into :-   -3+-2.5              -5.5
                               ------------------ =   -------------= -1.1
                                        5                        5


Now we need to divide -5.5 by 5. We get -1.1


Our final answer: -1.1

Combine like terms to simplify the expression.

−4p+(−6p)

Answers

Answer:

- 10p

Step-by-step explanation:

We know that,

( - ) × ( - ) = ( + )

( - ) × ( + ) = ( - )

( + ) × ( + ) = ( + )

Accordingly, let us solve the above expression.

- 4p + ( - 6p )

Solve the brackets.

- 4p - 6p

Combine like terms.

- 10p

Answer: - 10p

Step-by-step explanation A common technique for simplifying algebraic expressions. When combining like terms, such as 2x and 3x, we add their coefficients. For example, 2x + 3x = (2+3)x = 5x.

Kevin is 3 years older than Daniel. Two years ago, Kevin was 4 times as old as Daniel. How old is Kevin now?

Answers

Let k and d be the Kevin's age and the Daniel's age;
We have the equation:
k = 3 + d;
k - 2 = 4( d - 2 );
We have 3 + d -  2 = 4d - 8;
Then, d + 1 = 4d - 8;
9 = 3d;
d = 3.
Finally, k = 6 years.

Answer:

answer in the photo

Step-by-step explanation:
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