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
arsen [322]
3 years ago
9

The perimeter of a rectangle is 30 cm the length is 9 cm long longer than the width what are the length and width of the rectang

le
Mathematics
1 answer:
adell [148]3 years ago
8 0

Step-by-step explanation:

perimeter = 2(length) + 2(width)

let x represent the width of the rectangle

30 = 2x + 2(x + 9)

30 = 4x + 18

12 = 4x

x = 3

therefore width = 3 cm

length = 3+9

= 12cm

You might be interested in
1 The metal used to make a coin is a mixture of steel and copper. The ratio mass of steel
Masteriza [31]

\huge{ \underline{ \underline{ \gray{ \bf{Solution:}}}}}

Let,

  • Mass of the steel be 108x
  • Mass of the copper be 7x
  • Then, Total mass = 108x + 7x = 115x

Given,

  • Total mass of the coin = 230 mg

That means,

⇛ Total mass of the coin = 230 mg

⇛ 115x = 230 mg

⇛ x = 230 mg/115

⇛ x = 2 mg

Then,

  • Mass of the steel = 108(2) = 216 mg
  • Mass of the copper = 7(2) = 14 mg

☁️ ANSWER - 14 mg (Mass of copper)

<u>━━━━━━━━━━━━━━━━━━━━</u>

7 0
3 years ago
Determine if line jk and line lm are parallel perpendicular or neither​
frez [133]

Answer:

what are you talking about

7 0
3 years ago
Suppose that the data in a scatterplot are randomly located so that there is no relationship between x and y. Which of the follo
Sever21 [200]
I think you forgot to give the options along with this question. Based on my research and knowledge, i am answering the question and hope that the answer comes to your help. Zero correlation is the one that actually describes this situation correctly as "x" and "y" do not have any kind of relationship. I hope the answer comes to your help.
7 0
3 years ago
How many radians is 288 degrees?
Oksi-84 [34.3K]

Answer:

5.02655

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Pls someone help i have conferences tomorrow and im failing
Nutka1998 [239]

Answer:

y = 2 that sign means equal to so its literally another way to write =

so to graph this inequality you graph 2 on the y axis thats it

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Find the number of different subsets of the set mom dad son daughter
    14·1 answer
  • Evaluate a+b/2,if we know a=3 and b =6
    9·2 answers
  • The diagonals of a rhombus are 6 inches and 8 inches. What is the perimeter of the rhombus?
    10·2 answers
  • 15 - 8 = 4 x 7 What operation would you do first in this expression? 4x7 15-8 8:4​
    15·1 answer
  • Solve for a!!! please help. i'll give brainiest
    9·1 answer
  • 4(x-5)&lt;16<br><br> helppp i’m really bad at math
    7·1 answer
  • <img src="https://tex.z-dn.net/?f=n%5E%7B2%7D%20%2B20x%2B100%3D0" id="TexFormula1" title="n^{2} +20x+100=0" alt="n^{2} +20x+100=
    7·1 answer
  • Simplify the expression 3^-8 x 3^4
    11·1 answer
  • ONLY RIGHT ANSWERS
    14·1 answer
  • Simplify -51/6 (-81/2)
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!