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
gulaghasi [49]
3 years ago
6

the length of a rectangle is 4cm langer than the width. the perimeter is 80cm. what is the length and the width?

Mathematics
1 answer:
Lisa [10]3 years ago
4 0
Let us assume the width of the rectangle = x cm
Then
The length of the rectangle = (x + 4) cm
It is already given that
Perimeter of the rectangle = 80 cm
Now we also know the formula for perimeter of a rectangle
Perimeter = 2 ( length + width)
80 = 2 (x + 4 + x)
80 = 2 (2x + 4)
80/2 = 2x + 4
40 = 2x + 4
Dividing both sides by 2 we get
20 = x + 2
20 -2 = x
x = 18
Then
Width of the rectangle = 18 cm
Length of the rectangle = (18 + 4) cm
                                     = 22 cm
So the rectangle has a length of 22 cm and a width of 18 cm.
You might be interested in
How many solutions are there for quadratic graphed below:
masha68 [24]

Answer:

No solutions

Step-by-step explanation:

The graph does not contact the x axis

There are no real answers for this reason.

6 0
3 years ago
A test to detect an infection gives a positive result 98% of the time if a person is infected. It is 97% accurate for people who
sergeinik [125]
Consider this:

If a test gives a positive result for an infected person 98% of the time, that means that 2% of the time, it gives a negative result for an infected person, which would be a false negative.

Then,

if the test is 97& accurate (not precise) for non-infected people, that means that it gives a negative result 97& of the time. So a positive result will be given 3% of the time for non-infected people, which is considered a false positive.
5 0
3 years ago
Read 2 more answers
Is 63 even or odd
frutty [35]

c'mon bro you can't be this helpless

odd, even, even, even, even

3 0
2 years ago
Read 2 more answers
Follow the steps to solve this equation. 3(2x + 6) – 4x = 2(5x – 2) + 6 1. Use the distributive property: 6x + 18 – 4x = 10x – 4
Yuliya22 [10]

Answer:

x=2.

Step-by-step explanation:

We have been given an equation 3(2x+6)-4x=2(5x-2)+6. We are supposed to solve our given equation step by step.

Step 1: Use the distributive property.

3\cdot 2x+3\cdot 6-4x=2\cdot 5x-2\cdot 2+6

6x+18-4x=10x-4+6

Step 2: Combine like terms.

6x-4x+18=10x-4+6

2x+18=10x+2

Step 3: Use subtraction property of equality:

2x-2x+18-2=10x-2x+2-2

16=8x

Step 4: Use the division property of equality:

\frac{16}{8}=\frac{8x}{8}

2=x

Therefore, the solution of our given equation is x=2.

8 0
3 years ago
Read 2 more answers
How would you label this angle?<br><br> A) ∠C<br><br> B) ∠B<br><br> C)∠A<br><br> D) none of these
Elina [12.6K]

Answer:

B: Acute

Please make me brainiest

7 0
2 years ago
Read 2 more answers
Other questions:
  • I need help with example 4 plz
    6·1 answer
  • How many even integers greater than two and less then 20 are equal in value to the sum of 2 prime numbers?
    10·1 answer
  • A box of granola bars has 26 bars. If 7 friends split the bars equally, how many bars will be left?
    6·1 answer
  • Whole numbers greater than 20 but less than 27
    7·1 answer
  • How do you find the interest of a car
    9·1 answer
  • Pls help ASAP because i'm am struggling i will mark brainliest if you r correct but you have to be for sure.
    14·2 answers
  • What is the volume of the right rectangular prism, in cubic inches?
    13·2 answers
  • A history instructor has given the same pretest and the same final examination each semester. He is interested in determining if
    13·1 answer
  • Coach Tobias pays $136.78 for cable and internet each month. How much does Coach Tobias pay for cable and internet over the peri
    6·1 answer
  • Find the distance between the two points rounding to the nearest tenth (if necessary) (-1,-2) and (5,2)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!