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3 years ago

9

The perimeter of a rectangle is 26 m. the length is 4 m more than two times the width. Find the length and the width of the rect

angle.

1 answer:

Hitman42 [59]3 years ago

7 0

Length: 2x + 4
Width: x

Make 2(length) + 2(width) add up to 26 in an equation.

2(2x + 4) + 2(x) = 26

Distribute 2 inside the parentheses.

4x + 8 + 2x = 26

Combine like terms.

6x + 8 = 26

Subtract 8 from both sides.

6x = 18

Divide both sides by 6.

x = 3

Plug 3 for x into the length and width.

Length: 2(3) + 4 = 10 m

Width: (3) = 3 m

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For second answer how do you get it plz urgent plz

inna [77]

Step-by-step explanation:

Complete question is attached.

Answer:

a) ED = 6.5 cm

b) BE = 14.4 cm

Step-by-step explanation:

From the triangle, we are given the following dimensions:

AB = 20 cm

BC = 5 cm

CD = 18 cm

AE = 26 cm

We are asked to find length of sides ED and BE.

a) Find length of ED.

From the triangle Let's use the equation:

\frac{AB}{BC} = \frac{AE}{ED}BCAB=EDAE

Cross multiplying, we have:

AB * ED = AE * BC

From this equation, let's make ED subject of the formula.

ED = \frac{AE * BC}{AB}ED=ABAE∗BC

Let's substitute figures,

ED = \frac{26 * 5}{20}ED=2026∗5

ED = \frac{130}{20} = 6.5ED=20130=6.5

Therefore, length of ED is 6.5 cm.

b) To find length of BE, let's use the equation:

\frac{AB}{AC} = \frac{BE}{CD}ACAB=CDBE

Cross multiplying, we have:

AB * CD = AC * BE

Let's make BE subject of the formula,

BE = \frac{AB * CD}{AC}BE=ACAB∗CD

From the triangle, length AC = AB + BC.

AC = 20 + 5 = 25

Substituting figures, we have:

BE = \frac{20 * 18}{25}BE=2520∗18

BE = \frac{360}{25} = 14.4BE=25360=14.4

Therefore, length Of BE is 14.4cm

I JUST SO THAT IN INTERNET:)

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3 years ago

Yolanda is buying supplies for school. She buys n package of pencils at $1.40 per package and m pads of paper at $1.20 each. Wha

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1.4n represents the price and number of packages of pencils. 1.2m represents the number of paper pads and the price

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What is<br> -1 5/6 - (-3 1/4) ?

lions [1.4K]

Answer:

$1\frac{5}{12}$

Step-by-step explanation:

Eliminating a negative and changing our operation

$1\frac{5}{6} +3\frac{1}{4}$

Rewriting our equation with parts separated

$-1-\frac{5}{6} +3+\frac{1}{4}$

Solving the whole number parts

$-1+3=2$

Solving the fraction parts

$-\frac{5}{6} +\frac{1}{4} =[?]$

Find the LCD of 5/6 and 1/4 and rewrite to solve with the equivalent fractions.

LCD = 12

$-\frac{10}{12} +\frac{3}{12}=-\frac{7}{12}$

Combining the whole and fraction parts

$2-\frac{7}{12} =1\frac{5}{12}$

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2 years ago

Which factors of -12 add to -1?

beks73 [17]

Answer:

-4 and 3

Step-by-step explanation:

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3 years ago

If 6 cubes with an edge length of 14 can fit the height of the prism, what is the height of the prism? Enter the missing part of

Paha777 [63]

Answer: $84\ \text{units}$

Step-by-step explanation:

Given

The length of each cube is $a=14\ \text{units}$

If there are 6 cubes placed over each other, then the height achieved by the cubes is

$\Rightarrow 6\times 14\\\Rightarrow 84\ \text{units}$

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2 years ago