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3 years ago

a rectangles length is 4 times bigger than its width. if the width is 3.5cm. what is the perimeter and area of the rectangle

Mathematics

1 answer:

user100 [1]3 years ago

5 0

Step-by-step explanation:

Length of rectangle = 4 * 3.5cm = 14cm.

Perimeter of rectangle = 2(14 + 3.5) = 35cm.

Area of rectangle = 14 * 3.5 = 49cm².

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A store is holding a sale during which all items will be sold at 30% less than their marked prices. How much will a rug marked $

IceJOKER [234]

Answer:

Cost of rug during sale = $140

Step-by-step explanation:

Given

Marked price of rug in a store = $200

The store is holding a sale and offering a flat 30% less on marked price on all items

This means the sale price of all items would decrease by 30%

We can calculate the discount offered by taking out percentage discount of the marked price.

Discount offered on rug = 30% of Marked price $=0.30\times200=\$60$

The discount is then subtracted from the marked price to get the price of rug during sale.

∴ Price of rug during sale = Marked price - Discount $=\$200-\$60 =\$140$

6 0

3 years ago

If anyone can give me the answer that will be greatly appreciated :)

vfiekz [6]

42-x=58

or, -x=58-42

with change in side sign also chamges we change sides to make like terms in one side and unlike in amother side.

or, -x= 16

or,x=-16.

therefore x=-16...

Hope this helps you.

3 0

3 years ago

How do I graph y=x-3 and y=-2x+6

umka21 [38]

Answer:

you can use a graphing calc

Step-by-step explanation:

7 0

3 years ago

URGENTE, POR FAVOR

Firlakuza [10]

$\mathbf A=\begin{bmatrix}a_{1,1}&a_{1,2}\\a_{2,1}&a_{2,2}\end{bmatrix}$

$a_{i,j}=2i-j\implies\mathbf A=\begin{bmatrix}2\cdot1-1&2\cdot1-2\\2\cdot2-1&2\cdot2-2\end{bmatrix}=\begin{bmatrix}1&0\\3&2\end{bmatrix}$

Por la misma razón,

$\mathbf B=\begin{bmatrix}1-1&2-1\\1-2&2-2\end{bmatrix}=\begin{bmatrix}0&1\\-1&0\end{bmatrix}$

Entonces,

$4\mathbf A=\begin{bmatrix}4\cdot1&4\cdot0\\4\cdot3&4\cdot2\end{bmatrix}=\begin{bmatrix}4&0\\12&8\end{bmatrix}$

$\mathbf A-\mathbf B=\begin{bmatrix}1&0\\3&2\end{bmatrix}-\begin{bmatrix}0&1\\-1&0\end{bmatrix}=\begin{bmatrix}1-0&0-1\\3-(-1)&2-0\end{bmatrix}=\begin{bmatrix}1&-1\\4&2\end{bmatrix}$

$\mathbf B^\top=(b_{j,i})_{2\times2}=\begin{bmatrix}b_{1,1}&b_{2,1}\\b_{1,2}&b_{2,2}\end{bmatrix}=\begin{bmatrix}0&-1\\1&0\end{bmatrix}$

Yo no reconozco la notación "Ae"... Puedes explicarla?

$a_{1,1}\cdot b_{1,1}=1\cdot0=0$

$a_{2,2}\cdot b_{1,2}=2\cdot1=2$

6 0

3 years ago

The volume of a rectangular prism is calculated using the formula V = lwh, where V is the volume of the prism, l and w are the l

Anon25 [30]

if volume, length and height is known

the formula is rewritten as:

w = v/lh

4 0

3 years ago

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