The length of a rectangle is three times its width, if the area of the rectangle is 108cm2, find its perimeter

Answers

Answer 1

Answer:

The perimeter of rectangle is 48 cm.

Step-by-step explanation:

First, you have to form an expression for the length and the width. Let x be the width :

width = x cm

length = 3 × x = 3x cm

Then, you have to apply area of rectangle formula, A = length × width to find the value of x.Let area equals to 108 :

A = length × width

108 = 3x × x

3x² = 108

x² = 108 ÷ 3

x² = 36

x = √36

x = 6 cm

Lastly, you have to find perimeter :

length = 3 × 6 = 18 cm

width = 6 cm

Perimeter = 2(length + width)

P = 2(18 + 6)

P = 2(24)

P = 48 cm

Answer 2

Answer:

48cm

Step-by-step explanation:


Related Questions

Please help I’m begging I’ll make you brainliest

Answers

Answer:

t < 7  (all values less than 7)

All of the values make the inequality true except the bottom row

since you cannot leave 't' as a negative, divide each side of the inequality by -1 (but remember to reverse the inequality symbol)

Step-by-step explanation:

PLEASE HELP
Select the graph that shows the correct sum.

Answers

Answer: It’s the second option

Step-by-step explanation:

Write 383 in expanded form

Answers

300 + 80 + 3 that’s it

Answer:

300 + 80 + 3

PLease mArk me brainliest

What is this surface area?!!??

Answers

Answer:

132 in^2

Step-by-step explanation:

4×3×1/2×2+10×4×3=132

Translate the folowing sentence into a equation. The quotient of a number and -2, less 10, is-18

Answers

Answer:

x + (-2) - 10 = -18

Step-by-step explanation:

what is 12 more than m

Answers

What? You’ve got a picture or something?

X+7y=0
X+4y=8
Solve the equation

Answers

Answer:

1.x=-7y

2.x=8-4y

Step-by-step explanation:

Answer:

Step-by-step explanation:

answer you get brainliest and we can be buddies. (i am very loney)

Answers

Answer:

10017

Step-by-step explanation:

10^(4)-\sqrt(121)+3^(3)+4^(0)

So, 3^3= 27

4^0=1

10^4=10,000

-square 121= -11

So now you got:

10,000-11+27+1

=10017

Answer:

910

Step-by-step explanation:

1000-121 =879

879 + 27+ 906

906 + 4 = 910

f(x) = x2 + 1
f(-3)=)

Answers

Answer:

f(-3) means, put -3 at x

therefore, f(-3)= 3²+1

=10

11. Find the slope given two points.
(-1, 4) and (4, -3)

Answers

Answer:

m = -7/5

Step-by-step explanation:

I will give someone 100 points if they give me a brainliest

Answers

Answer:

ok

but why?

hmm

i dont get it , you will give someone 100 points for brainlist ? just answer someone’s question and ask for brainliest

Write 0.000 97 in standard form

Answers

Answer:

[tex]9.7 \times 10 {}^{ - 4} [/tex]

The standard form of given number [tex]9.7[/tex]×[tex]10^{-4}[/tex]

What is standard form?

Standard form is a way of writing down in easy form of very large or very small numbers.

Let E is the standard form of given number

E=0.00097

E= [tex]\frac{97}{100000}[/tex]

E=97×[tex]10^{-5}[/tex]

E=[tex]9.7[/tex]×[tex]10^{-4}[/tex]

The standard form of given number [tex]9.7[/tex]×[tex]10^{-4}[/tex]

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a woodworker wants to cut a board that is 8.225 feet long into 5 equal pieces. How long will each of the boards be?​

Answers

Answer:

1.645 feet

Step-by-step explanation:

To solve this you must divide the total length by 5. 8.225/5=1.645. Each board will be 1.645 feet long

Each board will be 1.645 feet long

If the value of a quarter of a kilogram is ₹ 40, how much money will be the value of 100 grams?​

Answers

Answer:

₹16

Step-by-step explanation:

1/4 kg = ₹ 40

1kg = 40×4 = ₹160

1000g = 1kg

100g = 100/1000 kg

= 0.1kg

0.1kg= 0.1×160 = ₹16

First convert 40 grams to kg. A kilogram is 1000 grams, so you divide 40 by 1000 which is .04 kg.

40 grams * 1 kg / 1000 grams = .04 kg

(Note here that 1 kg = 1000 grams meaning that 1 kg / 1000 grams = 1; anything divided by itself is one; therefore, when I multiply by 1 kg / 1000 grams I’m not changing the value, only the units.)

Then you simply multiply the price per kg by the number of kg giving 6.6.

.04 kg * 165 / 1 kg = 6.6

(Oranges are different. You can’t compare apples to oranges.)

5 x (2+8) + (12-6/3) x2

Answers

Answer:x

3

+

64

x

3

1

12

t

8

Step-by-step explanation:

Answer:

5 x (2+8) + (12-6/3) x2

5×10+(12-2)×2

50+10×2

50+20

70

Mary bought a 2 pound bag of dog food. Her dog ate 3/6 pound on Monday and 2/6 pound on Tuesday. How many pounds of dog food remain in the bag? (work it out)

Answers

Answer:

1-1/6

Step-by-step explanation:

3/6+2/6=5/6

This is out of one pound

So there is 7/6 pounds left

Or 1-1/6

The circumference of a circle is 7xm.
What is the area of the circle?
A. 3.57x m²
B. 12.257x m2
C. 147xm2
D. 497xm2

Answers

Answer:

A = 3.57 m²

Step-by-step explanation:

Given that,

The circumference of a circle is 7xm.

The expression for the circumference of a circle is given by :

[tex]C=2\pi r[/tex]

r is the radius of the circle

[tex]r=\dfrac{C}{2\pi}\\\\r=\dfrac{7}{2\times \dfrac{22}{7}}\\\\r=1.11\ m[/tex]

The area of a circle is given by :

[tex]A=\pi r^2\\\\A=3.14\times (1.11)^2\\\\A=3.89\ m^2[/tex]

Out of given option,

A = 3.57 m²

So, the area of the circle is 3.57 m².

An NBA trainer wants to know if his stretching routine is helping the players on his team jump higher. He records the average height jumped for 8 players before completing his stretching routine, and then again after they have stretched. What is the parameter? Group of answer choices dbar = the true sample mean difference in jump height mu_d = the true sample mean difference in jump height dbar = the true population mean difference in jump height mu_d = the true population mean difference in jump height

Answers

Answer:

a. mu_d = the true population mean difference in jump height

Step-by-step explanation:

In statistical parlance, observations used for a study could either be randomly chosen points or members of a large group or population, this small chosen observation obtained from a larger group is called the sample, the statistical measures or characteristic of such group is called statistic; while statistical characteristic, computations or measurement of the entire group of observations is called the parameter.

Mean of sample are usually represented with a bar sign on top such as (xbar) ; while mean of a population is represented as μ.

Graph each equation or inequality

y = 3/4x-2

Answers

The answer to your question is b

Help help help help help pls

Answers

The answer is c maybe but I might be wrong and I might be correct but who knows unless you pick C

In the figure shown what is the value of x?

Answers

Answer:

23 is the right answer hope it's helps you

The value of x from the given congruent triangles is 23 units.

In the figure ΔABC and ΔDEF are given.

What is the congruence theorem?

Triangle congruence theorem or triangle congruence criteria help in proving if a triangle is congruent or not. The word congruent means exactly equal in shape and size no matter if we turn it, flip it or rotate it.

Consider, ΔABC and ΔDEF, we have

AB=DE (Given)

∠BAC=∠EDF (Given)

AC=DF (Given)

So, ΔABC ≅ ΔDEF

We know that, by CPCT

BC=FE

⇒ x-4=19

⇒ x=23 units

Therefore, the value of x from the given congruent triangles is 23 units.

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The table shows the fees to park in a parking lot.
first hour = $1
second hour = $1.50
each additional hour or part of an hour = $2.
How much does it cost to park for 4 1/2 hours?

Answers

Answer:

$7.50

Step-by-step explanation:

4 1/2 hours total

1st hour = $1.00 ;  3 1/2 hrs remaining

2nd hour = $1.50 ;  2 1/2 hrs remaining

after 2 hours you pay $2 per hour so 2.5 x 2 = $5.00

Jenna painted l 1/8 of one side of a fence. Mark 3 one the other side of the same sex use greater equal or less to compare of the parts that they painted.

Answers

Answer:

?????

Step-by-step explanation:

Write an expression in the simplest form that represents the perimeter of the following shape

Answers

Perimeter is adding all 4 sides together:

8 + 8 + 9x + 9x

Simplify by coming like terms to get:

18x + 16

The answer is d. 18x + 16

Hello. Giving Brainliest for whoever is correct.


A poster is shown below:

A rectangle is shown. The length of the rectangle is labeled 12 feet. The width of the rectangle is labeled 3 feet.

What are the dimensions if the poster is enlarged by a factor of five over two ?

7.5 ft by 30 ft
15 ft by 60 ft
1.5 ft by 6 ft
15 ft by 6 ft

Answers

Answer: 7.5 ft by 30ft

Explanation: 12*5/2=60/2=30 ft
3*5/2=15/2=7.5 ft

pls pls help me pls help me

Answers

Answer:

68m squared or the first option

Step-by-step explanation:

68m squares i hope it right

Find the volume of this cuboid 5cm

Answers

I think the answer is V=125

Answer:

125[tex]cm^{3}[/tex]

Step-by-step explanation:

5x5x5= 125

15j + 15 i need this ASAP will give brainlyest

Answers

Answer:

15 ( j + 1)

Step-by-step explanation:

You need to factor it.

15 ( j +1 )

= 15j + 15 ✔

Which point is a reflection of (-3,-3) across the y-axis?
(-3, 3)
(3, 3)
0 (-3,-3)
o
(3,-3)

Answers

Sorry if it’s too late, but I worked it out for you.

The point which is a reflection of (-3,-3) across the y-axis is, (3, - 3)

What is Coordinates?

A pair of numbers which describe the exact position of a point on a cartesian plane by using the horizontal and vertical lines is called the coordinates.

We have to given that;

The point is,

⇒ (- 3, - 3)

Now, We know that;

The rule of reflection after across the y - axis is,

⇒ (x, y) = (- x, y)

Thus, The point which is a reflection of (-3,-3) across the y-axis is,

⇒ (x, y) = (- x, y)

⇒ (-3, -3) = (- (-3), -3)

              = (3, - 3)

Learn more about the coordinate visit:

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Which is equivalent to the expression below? |-3|
O
13
-1-31
O
3

Answers

it’s 3, absolute value makes everything positive
answer is 3 because absolute value is always positive
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