MATHEMATICS MIDDLE SCHOOL

The length of a rectangle is 2/5 meter. Its width is 1/4 of its length. What is the perimeter of the rectangle?

Answers

Answer 1

Answer: P= 2(2/5 + 1/4)
2/5 + 1/4 = 8+5/20 = 13/20
P= 2 x 13/20 = 13/10

Answer 2

Answer: 2(2/5) + 2(2/5 x 1/4)
0.8 + 0.2
= 1

It has a perimeter of 1 metre.

Further Explanation

Therefore, we should have:

To determine the perimeter of the rectangle = 2 x (length + wide)

P = 2 (L + W)

P = 2L + 2W

Recall the distance around the park is 12.5,

Hence,

= 12.5 = 2 (4x) + 2 (x)

= 12.5 = 8x + 2x

= 12.5 = 10x

X = $(12.5)/(10)$

X = 1.25

To determine the area, the formula for area is (A = W x L)

A = X x (4X)

A = $4X^(2)$

A = 4 x $(1.25)^(2)$

A = 4 x (1.25 x 1.25)

A = 4 x 1.5625

A = 6.25 square kilometers

Thus, the area of the park is 6.25 square kilometers.

LEARN MORE:

A park is 4 times as long as it is wide. if the distance around the park is 12.5 kilometers, what is the area of the park brainly.com/question/768779
A park is 4 times as long as it is wide. if the distance around the park is 12.5 kilometers, what is the area of the park brainly.com/question/286278

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Answers

1. Selena has to walk to school and from school.
That means that each day, she walks the distance from her house to the school twice.
If she walks 2/3 in a day, the distance must be half of that, or 1/3.

2. 3 batches = 3/4 cup.
Divide each side by 3.
1 batch = 1/4 cup.

3. 5 eighths minus 1 eighth = 4 eighths.
Since we have the same bottom number, we don't need to do anything special. This problem is just the same as something like 5 apples - 1 apple.

4. First, let's convert 6 into thirds.
6 × 3 = 18
Therefore, 6 = 18/3.

Add 6 and 2/3.
18/3 + 2/3
20/3

5. To be a composite number, a number needs to be divisible by something besides 1 or itself.
Check your divisibility rules...
39 is divisible by 3 (39 ÷ 3 = 13), so this could be his house number.

6. 12 cupcakes - 9 chocolate = 3 vanilla.
3 vanilla cupcakes out of 12. (3/12)
We can simplify this fraction. 3 and 12 are both divisible by 3.
3/12 = 3÷3 / 12÷3 = 1/4

number one is 1/3 because 1/2 of 2/3 is 1/3

If you multiply me by 7 ,add 1 and divide by 4 you get nine what number am i

Answers

you are 5
5×7=35
35+1=36
36÷4=9

Hi there! (7x+1)/4=9. Now, we have to solve for x. 8x+1=36, 8x=35. 8x/8=35/8=4.375. If you want to round 4.375 it would be 5. Therefore, the number is 5.

a quadrilateral has all sides the same length and no right angles. what is the name of the quadrilateral