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
Blababa [14]
3 years ago
6

The perimeter of a rectangle is 78 m the width is 7 m less than the length find the length and the width of the rectangle

Mathematics
2 answers:
Anni [7]3 years ago
5 0

Answer:

length = 23 m

width = 16 m

Step-by-step explanation:

perimeter of a rectangle= p = 2*L+2*w

p = 78 =2*L+2*w

w=width

L=length

w = L-7

78 =2*L+2*w

78= 2L+2( L-7)

78= 2L+2L - 14

78+14= 4L

4L=92

L=92/4

L= 23 m = length

so we have:

w = L-7

w= 23-7= 16 m = width

chubhunter [2.5K]3 years ago
4 0

Step-by-step explanation:

let the length of the rectangle be x

hence, the width of the rectangle is (x-7)

perimeter of a rectangle=2(l+w)

78=2(x+x-7)

78=2(2x-7)

78=4x-14

4x=78+14

x=92/4

therefore x or length=23 m

hence,width will be (x-7) or (23-7)=16m

You might be interested in
What is the value of the following expression? <br> 4×[6+(27÷3)+11]
-BARSIC- [3]
4 × (6+7 + 11)
4 × 24
96
4 0
3 years ago
Read 2 more answers
The length of a rectangular plot of land is 10 yards more than its width if the area of the land is 600 yd.² find the dimensions
Andrews [41]

Answer:

The dimension of the plot is 30 yd by 20 yd

Step-by-step explanation:

Given;

Area = 600 yd^2

Length = width + 10

l = w + 10 ......1

Area of a rectangular plot is;

Area A = length × width

A = l × w

Substituting equation 1;

A = (w+10) × w

A = w^2 + 10w

600 = w^2 + 10w

w^2 +10w -600 = 0

Solving the quadratic equation;

w = -30 or 20

cannot be negative

w = 20 yd

l = w+10 = 20+10 = 30yd

The dimension of the plot is 30 yd by 20 yd

6 0
3 years ago
Find an equation of the tangent line to the curve at the given point. y=secx (pi/3,2)
olchik [2.2K]
Base on the question where as asking to calculate the equation of the tangent line to the curve at the given point and base on the given data and in my further computation about the said given, I would say <span>y = 2√(3)x + 2 - (2pi√(3))/3. I hope you are satisfied with my answer and feel free to ask for more </span>
7 0
3 years ago
+ x = 12 – 2x<br> what is this?
AleksAgata [21]

Answer:

x= -6

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Work out, giving your answer in its simplest form: <br><br>3 1/2 ÷ 2 3/5​
Alecsey [184]

Answer:

this is the ans- 3.36956522

7 0
3 years ago
Other questions:
  • Factor the trinomial below. 4x^2+23-6. which two binomials are factors of the trinomial
    11·1 answer
  • Nico is saving money for his college education. He invests some money at 7%, and $1200 less than that amount at 3%. The investme
    5·1 answer
  • For a 36-gon what is the sum of the exterior angles
    11·1 answer
  • Find the mean, median and mode for the following data:
    7·2 answers
  • What is the least common multiple of these two denominators?<br> 3/6,2/12
    10·2 answers
  • 5. Let us apply the formula to some numbers. The following are the durations in minutes of a series of telephone calls. You want
    12·1 answer
  • two nonoverlapping acute angles that share a ray form an obtuse angle if one of the acute angles have a a measure of 50 degres w
    7·2 answers
  • (02.01)<br> Solve for x: 3x - 5 = 2x + 6. (1 point)<br> a<br> -1<br> d<br> -11
    10·1 answer
  • Please someone help me. Im giving brainliest!
    12·2 answers
  • Hi can anybody answer this please !
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!