All categories

2 years ago

Maths question pls answer

Mathematics

2 answers:

alexira [117]2 years ago

7 0

Answer:

72cm²

Step-by-step explanation:

perimeter= 2(l+w)

36 = 2(l+w)

36/2 = l+w

18 = l+w

since, l is twice as w

18= 2w + w

18 = 3w (we can add since all the variables, and exponents are same)

18/3 = w

6= w

NOW,

w=6 and l is equal to twice as 6

so l=12

area= l×b

= 12×6 = 72cm²

hope this helps. It was toooo long

Sergio [31]2 years ago

5 0

Answer:

Length=12

Width=6

You might be interested in

Select ALL that apply: 21 days is equal to...

Sonbull [250]

1 week is 7 days.

3 weeks = 21 days. Answer D. is correct.

A hour is 3600 seconds

24 hours ( a day ) is 86400 seconds

21 days is 1814400 seconds. * This is not an option *

Since 24 hours are in a day 24 hours x 21 days is 504 hours

Answer A. is correct

504 hours x 60 minutes per hour is 30240

Answer B. is correct. These are all the correct answers, A,B, and D.

3 0

2 years ago

Read 2 more answers

Describe the graph of y > mx, where m > 0

Dennis_Churaev [7]

The graph of y > mx, where m > 0, consists of a dashed line and a shaded half plane. The line has a positive slope and passes through the origin. The shaded half plane is above the line.

6 0

2 years ago

Read 2 more answers

Half of Ethan string is equal to 2/3 of Kayla stream the total length of the string is 10 feet how much longer is Ethan string K

Verizon [17]

Answer:

10/7 feet

Step-by-step explanation:

Let e = Ethan

k = Kayla

The following equations can de derived from the equation :

1/2 e = 2/3k

multiply both sides of the equation by 2

e = 4/3k --- 1

e + k = 10 --- 2

Substitute for e in equation 2

4/3k + k = 10

7/3k = 10

multiply both sides of the equation by 3/7

k = 30/7

Substitute for k in equation 1

e = (4/3) x 30/7 = 40/7

difference in length = 40/7 - 30/7 = 10/7

3 0

2 years ago

Evaluate the following expression (2.3)-3(1,1)

uranmaximum [27]

Answer:

2.3 - ( 3, 1)

Step-by-step explanation:

1) Simplify 3 × (1, 1) 3 × (1, 1) to 3× 1, 13 × 1,1.

2.3 - ( 3 × 1, 1 )

2) Simplify 3 × 1 to 3.

2.3 - ( 3, 1)

Therefor, the answer is 2.3 - ( 3, 1).

3 0

2 years ago

Read 2 more answers

Whats 10{3[25-6(22-19)+11]}

katrin2010 [14]

The answer for this equation is 540!

5 0

2 years ago