1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dimaraw [331]
4 years ago
8

The sides of a rectangle have the ratio 7:2. its perimeter is 207cm. Find the area

Mathematics
1 answer:
castortr0y [4]4 years ago
8 0
X - unit of length
w,l - the sides of a rectangle

7 : 2 ⇒ 7x : 2x

Perimeter: P = 207cm
Perimeter: P = 2w + 2l

therefore: 2w + 2l = 207    |divide both sides by 2

w + l = 103.5 (cm)

w : l = 7 : 2 ⇒ w : l = 7x : 2x ⇒ w = 7x; l = 2x

subtitute

7x + 2x = 103.5
9x = 103.5    |divide both sides by 9
x = 11.5 (cm)

7x = 7 · 11.5cm = 80.5cm
2x = 2 · 11.5cm = 23cm

w = 80.5cm; l = 23cm

Area = wl

Area: A = 80.5cm · 23cm = 1851.5cm²
You might be interested in
Please answer this I need this to bring up my grade! I’ll really appreciate it if you truthfully answered this!!!
Eva8 [605]
220 miles is the right answer
8 0
3 years ago
Read 2 more answers
Please help asap!! mark brainlyest.
KIM [24]

Answer:

Multiply everything by 15 because when you divide 40 from 600 you get 15. We will only use the 2 numbers on the right of both samples. Then find the total of each row

<u>18 turns into 270| 10 truns into 150 </u>=420

<u>19 turns into 285| 7 turns into 105</u>=390

Headline A: Both samples show that over 300 students want to go after 8 am which makes the headline true.

Headline B: 8:30 is actually the most popular start time because both samples show greater amount of students choose 8:30 as the start time than any other time.

Headline C: This statement is not supported by the data, the data shows that 7:45 am is the second most popular selection.

Headline D: This statement is not supported by the data because both samples show that over 100 people chose 9:00.

I hope this is a good answer for you and I hope you have a nice day.

P.S. Please mark me braineast!

7 0
2 years ago
Read 2 more answers
What is the slope of the line whose equation is –3x+y=12
hammer [34]

Answer:

m=3 is the slope

Step-by-step explanation:

5 0
3 years ago
2/3 X 12 for simplest form
Reil [10]

Answer:

yufcyiciygciykgc, nbhgcv

Step-by-step explanation:

98yfgouyfuchkgcbvkhgcihdiytdiytditdytdiytdityghvhgcxdfsrtyuhkjbhcgfdxzsaewrsdxfhgyujkhjmnb cvngfjkhji

6 0
3 years ago
Read 2 more answers
Giving Brainliestttttttt to first answer that’s correct!
Luba_88 [7]

Answer:

I think C sorry if wrong

7 0
3 years ago
Other questions:
  • X/4 · ___ = x.<br><br> A)-4 <br> B)0 <br> C)1/4<br> D)4
    13·1 answer
  • According to the National Institute on Alcohol Abuse and Alcoholism (NIAAA), and the National Institutes of Health (NIH), 41% of
    11·1 answer
  • A children’s sandbox is x feet deep, (10-x) feet wide and (14-x) feet long. What expression would represent the perimeter of the
    5·1 answer
  • 450 mistakes in 9 test
    5·2 answers
  • a grocery store paid 298.65 for 15 racks of bread.this can be expressed by the equation y=kx.how much would they have paid for 1
    14·1 answer
  • Simple percent question!!!!
    14·1 answer
  • Help Me Please I will give Brainliest IF Correct!!!
    15·2 answers
  • What is m∠A?<br><br><br>Enter your answer in the box.
    13·1 answer
  • Pls help this is due in 10 mins
    10·1 answer
  • What is the total surface area of the exterior of the box that Laura will cover? I’ll give points + brainalist
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!