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
tia_tia [17]
3 years ago
12

A rectangle is 3 times as long as it is wide, and its perimeter is 80 centimeters. Find its dimensions

Mathematics
1 answer:
Free_Kalibri [48]3 years ago
8 0

Say the width is W and the length is L

L=3W (and of course W=W)

Now you use the perimeter formula P=2L+2W

80=2(3W) + 2W)

80=6W+2W

80=8W Divide both sides by 8

W=10

Now that you know the width, substitute it back into L=3W to find the length

L=3(10)

L=30

The dimensions are length: 30 cm and width: 10 cm

You might be interested in
2. Evaluate the expression e + c for e = 9 and c = 5.<br> a. 14<br> c. 15<br> b. 45<br> d. 4
slega [8]

Answer: A. 14

Step-by-step explanation:

If e=9 and c=5 you would replace e+c with those

9+5=14

6 0
3 years ago
Which of the following are measurements of the sides of a right triangle?
mojhsa [17]

sides of right angle triangle follows Pythagoras theroem

which states

a^2 +b^2 = c^2

where a , b and c are sides of right angle triangle.

here none of options do not follow this.

so answer is option D

4 0
3 years ago
Read 2 more answers
Wich graph shous the solution set for -1.tx+84&gt;-13?
alexandr402 [8]

Here is the graph for this solution

3 0
3 years ago
If the probability of a certain event is 63/92, what are the odds against the event happening?
Deffense [45]
29/92 you minus sixty three by ninety two to get the probability of the event not to occur.  
<span />
3 0
4 years ago
A rate that describes how much smaller or larger the scale drawing is than then real object
Tems11 [23]
I'm not sure what is being asked here, but a rate that describes how much smaller or larger the scale drawing is than the real object would be a ratio such as 1in:25ft
6 0
3 years ago
Other questions:
  • What's the answer to this math problem
    11·2 answers
  • HELP ME ASAP LAST PROBLEM
    6·2 answers
  • Which line will have no solution with the parabola y – x + 2 = x2? y = –3x –3 y = –2x –3 y = 2x –3 y = 3x –3
    5·1 answer
  • Which value is the solution to the open sentence? 2 + 3x= 5
    9·2 answers
  • Triangle A″B″C″ is formed by a reflection over x = 1 and dilation by a scale factor of 2 from the origin. Which equation shows t
    6·1 answer
  • What theorem has been proven here?
    15·1 answer
  • What is rotational symmetry
    12·1 answer
  • PLZ HELP NEED HELP BRAINLIEST 100 POINTS AND BRAINLIEST
    15·2 answers
  • Find the selling price of the following item.<br> Original price of an iPod: $350<br> Discount 20%
    10·1 answer
  • The speed of an object in space is shown in the graph.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!