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2 years ago

Remember, the perimeter of a rectangle is twice the length plus twice the width. Use w to represent the width.

Mathematics

2 answers:

lianna [129]2 years ago

7 0

Equation
P = 2L + 2W
P = perimeter, L = length, W = width

MAVERICK [17]2 years ago

4 0

Answer:

just multiply the length and width both 2 times

Step-by-step explanation:

L=L(2)

W=W(2)

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Cedric and doug each had an equal amount of money. After cedric spent $35 and doug spent $28, the ratio of cedrics money to doug

uysha [10]

Answer:

Each of them had $49 at first.

Step-by-step explanation:

Given:

Cedric and Doug each had an equal amount of money.

Let the number of money they had at first be x

Cedric spent = $35

Doug spent = $28

Cedric Money left = $x-35$

Doug Money left = $x-28$

the ratio of Cedric money to Doug money was 2:3

Hence the expression can be made as;

$\frac{x-35}{x-28}=\frac{2}{3}$

Now by cross multiplication method we get;

$3(x-35)=2(x-28)$

Now we will use distributive property to elaborate the same;

$3x-105=2x-56$

Combining common terms we get;

$3x-2x=105-56$

Using Subtraction property we get;

$x= 49$

Hence $49 they each had at first.

8 0

2 years ago

The difference between a number and 20 is 45...

chubhunter [2.5K]

Answer:

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

What is the length of the side of a right triangle that has a side length of 20 mm and a hypotenuse of 25 mm?

Marta_Voda [28]

I don't know but I think it is C

6 0

3 years ago

Is the expression 3^2 ^3 equivalent to 3^3 ^2<br> explain.

Pavlova-9 [17]

Answer:

Step-by-step explanation:

because they have 2 different answers

4 0

2 years ago

Read 2 more answers

2.6.5 A plant physiologist grew birch seedlings in the green-house and measured the ATP content of their roots. (See Example 1.1

Ilya [14]

Answer:

$(a)\ \bar x = 1.19$

$(b)\ \sigma_x = 0.18$

Step-by-step explanation:

Given

$n = 4$

$x: 1.45\ 1.19\ 1.05\ 1.07$

Solving (a): The mean

This is calculated as:

$\bar x = \frac{\sum x}{n}$

So, we have:

$\bar x = \frac{1.45 + 1.19 + 1.05 + 1.07}{4}$

$\bar x = \frac{4.76}{4}$

$\bar x = 1.19$

Solving (b): The standard deviation

This is calculated as:

$\sigma_x = \sqrt{\frac{\sum(x - \bar x)^2}{n - 1}}$

So, we have:

$\sigma_x = \sqrt{\frac{(1.45 -1.19)^2 + (1.19 -1.19)^2 + (1.05 -1.19)^2 + (1.07 -1.19)^2}{4 - 1}}$

$\sigma_x = \sqrt{\frac{(0.1016}{3}}$

$\sigma_x = \sqrt{0.033867}$

$\sigma_x = 0.18$

4 0

2 years ago