The ratio of the length and breadth of a rectangle is 5:4 and its area is 180 cm
(i) Find its length and breadth (ii) Find its perimeter

Answers

Answer 1

Answer:

Length = 15 cm, width = 12 cm, Perimeter = 54 cm

Step-by-step explanation:

The ratio of the length and breadth of a rectangle is 5:4 and its area is 180 cm².

Length = 5x

Breadth = 4x

Area of rectagle,

A = bl

180 = 5x × 4x

180 = 20x²

x² = 9

x = 3

Length = 5x = 5(3) = 15 cm

Width = 4x = 4(3) = 12 cm

Perimeter of rectangel,

P = 2(l+b)

= 2(15+12)

= 54 cm

Hence, this is the required solution.


Related Questions

how to find the measure of the obtuse angle

Answers

Make them equal to 180
23x+68x-2=180
X=2

Justify: Same side interior angles

Answer:

Measure of obtuse angle is 134 degrees

Step-by-step explanation:

these two angles are supplementary so they add up to 180

68x-2 +23x=180

91x-2=180

91x = 182

x = 2

plug in x

68 (2) -2 = 134

23 (x) = 46

what is the opposite of dividing by 2.3

Answers

Answer:

multiplying by 2.3 is the opposite

A right triangle is shown.



What is the area of the right triangle?

Answers

B

Step-by-step explanation:

The answer is B 60 in.^2.

10*12= 120

120/2 = 60

I hope this helps and have a great day!

Area of a triangle = 1/2 • b • h

A = 1/2 • 10 • 12

A = 60 in squared

You deposit $3500 in a savings account that has a rate of 6% compounded semiannually. How much is in the account after 3 years?

Answers

Answer:

$4,179

Step-by-step explanation:

According to the scenario, calculation of the given data are as follows,

Total deposit (P)= $3,500

rate of interest = 6%

Rate of interest (semiannual) (r) = 3%

Time = 3 years

Time period (t) (semiannual) = 6

So, we can calculate the total amount after 3 years by using following formula,

FV = P [tex](1+r)^{t}[/tex]

By putting the value, we get

FV = $3,500 ( 1 + 0.03)^6

FV = $3,500 ( 1.03)^6

= $3,500 × 1.194

= $4,179

HELP PLEASE WILL LEAVE GOOD RATING

Answers

Answer:

that would be 200 to 2,000 feet in the air

Can y’all help me fin the height

Answers

4 is the height...
The width is 2.5
The length is 2+2.5=4.5
The volume is 45
So, we input:
45/4.5*2.5 (V/LW) to find the height

Solve the following quadratic by
completing the square.
f(x) = x2 + 10x - 1

Answers

79 because it simple

Can someone please help me!

Answers

Answer:

Answer :-

Option D :- (180 - 2x)°

Hope it helped :)

Consider the original triangle and the enlargement,
2 cm
8 cm
3 cm

Answers

Answer: 12

Explaining: 2 times 4 is 8 so makes it reasonable to say 3 times 4 is 12. Also both of the triangles are similar just the left is smaller and the right is larger.

Biologists discovered an invasive species of fish in a lake. The function fff models the population size (in thousands of fish) for this species as a function of time (in months) after being discovered.
Plot the point on the graph of fff that corresponds to the time when the population reached its maximum size.

Answers

Answer: (4,9) which is the vertex or the top of the parabola

Step-by-step explanation:

The population drops after 4 months making that the maximum of the population of the fish. The answer is the vertex of the parabol which is basically the top of the peak

Use the relationship between the angles in the figure to answer
the question
310
40°
Which equation can be used to find the value of x?
Drag and drop the equation into the box.
2 = 180 – 31 +40
2 = 90 - 40
= 180 — (31 + 40)
290
(31 + 40)

Answers

31+40 = 71. 180-71=109

Answer:

=180-31+40

=180-71

=109

Given m||n, find the value of x.

Answers

Answer:

x=16

Step-by-step explanation:

Answer:

x=15

Step-by-step explanation:

The definition of a transversal says that the two expressions are equal to each other so you can solve the equation:

4x-7=3x+9

x=15

James bought 12 cookies and ate 3 of them. He ate __ % of the cookies. (Make sure to enter the answer using numbers only. Do not enter special characters such as the percent symbol.)
Blank 1:

Answers

Answer:

James ate 25% of the cookies

Gigi earned $65 for 5 hours of gardening. She earned $90 for 9 hours of office work. Which statement correctly compares Gigi’s earning per hour for gardening and office work?

Answers

Answer:

Even though you did not add choices, she makes more gardening.

Step-by-step explanation:

65 / 5 is 13, so she makes $13 an hour while gardening.

90 / 9 is 10, so she makes $10 an hour while doing office work.

Answer:

The answer is A take my word for it brodies i swear

Step-by-step explanation:

Consider the two shown below Are the two triangles congruent

Answers

Answer:

yes

Step-by-step explanation:

Verify that a + ( b + c) = (a + b) + c , a = (-12) , b = 4 , c = (-25)

Answers

Answer:

a + (b + c) = (a + b) + c

Step-by-step explanation:

a= (-12), b = 4, c = (-25)

[tex](12) + (4 + ( - 25)) = ( - 12 + 4) + ( - 25) \\ - 33 = - 33[/tex]

Answer:

GIVEN :-

a = -12b = 4c = -25

TO VERIFY :-

a + (b + c) = (a + b) + c

SOLUTION :-

Find the values of L.H.S. & R.H.S.

L.H.S. :-

Put all values in → [tex]\boxed{a+(b+c)}[/tex]

⇒ -12 + [4 + (-25)]

⇒ -12 + (4 - 25)

⇒ -12 + (-21)

⇒ -12 - 21

⇒ -33

R.H.S. :-

Put all values in → [tex]\boxed{(a+b)+c}[/tex]

⇒ (-12 + 4) + (-25)

⇒ -8 - 25

⇒ -33

CONCLUSION :-

L.H.S. = R.H.S.

⇒ a + (b + c) = (a + b) + c


Find the amount of degrees in x, if the three angles of a triangle are 2x, 2x, and 32 degrees.

Answers

Answer: 2x=74

Step-by-step explanation:

Every triangle is 180 degrees.

so you will take 180-32= 148

then with that you will add up the x's and there are 4...

so then you will take 148/4 and get the answer of...

148/4=37

x=37

but it asked for 2x

37*2

2x=74

final answer is 74

Please help I need all the answers not only one.

Answers

Answer:

Answer :-

18) 1=29 , 2=61 , 3=90 , 4=29 , 5=90

19) 1=54 2=36 3=54 4=128 5=72

20) 1=90 2=45 3=45 4=45 5=45

Hope it helped :)

The following set of data represents the number of votes for the winner of prom queen over the past several years: 87 94 95 70 75 59 53 82 82 68. Find the median number of votes cast

Answers

Answer:78.5

Step-by-step explanation:

the median is the middle digit so with 10 different numbers it would be the 5th or sixth number  

but you have to first have them in least to greatest order

53,59,68,70,75,82,82,87,94,95

5th+6th/2

75+82= 157

157/2

78.5  

hope its helpful

ANYONE PLS HELP ASAP!!

Answers

Answer:

the answer your looking for is 2 2/8 pies

what is 1 + 1
if the answer is 2 then why is it 2​

Answers

You have 1 pencil and then your mom gives you 1 pencil so now you have 2 pencils. 1+1=2

TELL ME PLEASE WHAT IS 50000039209123010 DIVIDED BY 5.

Answers

Answer:

32

Step-by-step explanation:

Answer:

1.000000784 x 10^16

Need help on this question asap please

Answers

Answer:

a= 168

p= 62

Step-by-step explanation:

25 24 and 7 are pythagorean triples. meaning the short side length is 7.

24*7 = 168

48+14=62

EASY MATH PLEASE HELP!! : )
EXPLANATION REQUIRED
NO LINKS PLEASE
I WILL GIVE BRAINLIEST
(*HINT: THE ANSWER IS NOT B*)

Answers

Answer:

Option A

Step-by-step explanation:

The area of the big Square is 216.

the Smaller Square is 9

subtract both of those, you get option A, 207.

have an amazing day!

12 x 18 = 216

3 x 3 = 9

216 - 9 = 207

The answer would be A

can you show me how you did it plz

Answers

Answer:

$6.50

Step-by-step explanation:

Info stated:

m is the number of minutes the car wash will runm = 20

Work:

0.25m + 1.50

0.25(20) + 1.5

5 + 1.5

6.5

The incomplete table below summarizes the number of left-handed students and right-handed students by gender for the eighth-grade students at Keisel Middle School. There are 5 times as many right-handed female students as there are left-handed female students, and there are 9 times as many right-handed male students as there are left-handed male students. if there is a total of 18 left-handed students and 122 right-handed students in the school, which of the following is closest to the probability that a right-handed student selected at random is female? (Note: Assume that none of the eighth-grade students are both right-handed and left-handed.)

A) 0.410
B) 0.357
C) 0.333
D) 0.250

Answers

Answer: A) 0.410

In order to solve this problem, you should create two equations using two variables (x and y) and the information you're given. Let x be the number of left-handed female students and let y be the number of left-handed male students. Using the information given in the problem, the number of right-handed female students will be 5x and the number of right-handed male students will be 9y. Since the total number of left-handed students is 18 and the total number of right-handed students is 122, the system of equations below must be true:

x+y=18

5x+9y=122

HELPPPPPPP
PLS.
HELP.
-Elizabeth R.
-YT: Lizzy Playz (with an anime girl icon with glasses)
-Dis Cord: Your.Local.Lizzy.Afton

Answers

well, its just area ez. 3.8x3.8=14.44

Answer:

14.44ft^2

Step-by-step explanation:

3.8ft x 3.8ft

Sam’s gross income is $1800 every other Friday. Calculate his net income, for one paycheck, if his Federal tax rate is 10% and his State tax rate is 3%.

Answers

Answer:

I believe the answer is $1571.4

Step-by-step explanation:

1800 - 10% = 1620

1620 - 3% = 1571.4

The net income of Sam will be $ 1571.4.

It is given that Sam's gross income is $1800 every other Friday. He has to pay two taxes i.e., 10 % federal tax rate and 3% state tax rate.

We have to calculate his net income.

What is the value of 18 % of 300 ?

The value will be 54.

As per the question Sam's gross income is $1800 , every other Friday.

He has to pay some Federal tax rate , so 10 % will be deducted from gross income.

⇒ 1800 - 10% = $ 1620

Now , he has to pay some State tax rate , so 3 % will be deducted from gross income.

⇒ 1620 - 3% = 1571.4

Thus , his net income will be $ 1571.4.

To learn more about percentage click here ;

https://brainly.com/question/24062437

#SPJ2

Miguel measured a house and its lot and made a scale drawing. The backyard, which is 40 feet wide in real life, is 20 inches wide in the drawing. What scale did Miguel use? plz help

Answers

Answer:

Can you please post a picture?!

Step-by-step explanation:

Answer: Henge

Step-by-step explanation:

I got you boys ;)

I need help with number 6, please, thank you

Answers

Answer:

SA =12.

Step-by-step explanation:

In a parallelogram the diagonals bisect each other , so:

2x - 1 = x + 7

2x - x = 7 + 1

x = 8.

QS = x + 4 = 8 + 4

= 12.

But QS = SA, so SA =12.

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