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
Likurg_2 [28]
4 years ago
9

What is the length and width of a rectangle with a perimeter of 28 feet and an area of 48 sq feet

Mathematics
2 answers:
nydimaria [60]4 years ago
6 0

Answer:

The rectangle is 8 ft by 6 ft.  

Step-by-step explanation:

Let x = length and y = width

Then, 2x+2y = 28 and xy = 48

Since 2x+2y = 28, y = 14 - x

So, x(14 - x) = 48

   x2 - 14x + 48 = 0

  (x-8)(x-6) = 0

  x = 8 or x = 6


Hope this helps!  

inna [77]4 years ago
6 0

Answer:

The dimensions are 6 ft by 8 ft

Step-by-step explanation:

Area = l*w

Perimeter = 2(l+w)

48 = lw

28 = 2(l+w)

Divide by 2

28/2 = 2/2(l+w)

14 = l+w

Subtract w from each side

14-w =l+w-w

14-w =l

Substitute this into the first equation for area

48 = lw

48 = (14-w) *w

48 = 14w - w^2

Subtract 14w from each side

48 -14w = 14w-14w -w^2

-14w +48 = -w^2

Add w^2 to each side

w^2 -14w +48 = -w^2+w^2

w^2 -14w +48  =0

Factor

(w-6) (w-8) = 0

Using the zero product property

w-6=0  w-8=0

w=6   w=8

So the width could be 6  or the width could be 8

If the width is 6

14-w =l

14-6 =l

8 =l

The length is 8

If the width is 8

14-w =l

14-8 =l

8 =l

The length is 6

You might be interested in
Whole numbers are __ integers
enot [183]

whole number are positive integers.

3 0
3 years ago
Read 2 more answers
What expression is equivalent to 3/5
Mkey [24]

Answer:

6/10 is equivalent to 3/5, so is 9/15.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The centre of a triangle must always be found inside the triangle. Illustrate the statement with examples or deny the statement
Alla [95]

The center of a triangle must always be found inside the triangle given that it is concurrent point of the three median lines of the triangle all three of which are located only inside of the triangle

The examples of the properties of the center of a triangle are;

  1. The center of the triangle is the centroid of the triangle which is the point of concurrency of the three medians of the triangle, where a median line is the line which connects a vertex to the midpoint of the side opposite the vertex inside the triangle
  2. Each median line divides the area of the triangle in half, and given that the area of the triangle is equal to half the altitude, multiplied by the length of the base side of the triangle, the three medians of a triangle are related and share a common concurrent point <em>inside</em> the triangle such the perpendicular distance from the concurrent point of the three medians to each of the three side is less than the altitude of the triangle

Given that the three medians are located inside the triangle therefore, based on the location of the center of the triangle on the medians of the triangle, the center of the triangle must always be found inside the triangle

Learn more about the centroid of a triangle here;

brainly.com/question/16482898

3 0
3 years ago
(HELP ASAP!!) An exterior angle of a triangle is 152°. If the non-adjacent angles are congruent, then what are the measures of a
tresset_1 [31]

Answer:

  c) 28°, 76°, 76°

Step-by-step explanation:

The two remote interior angles sum to 152°. Since they are congruent, their measures are 152°/2 = 76°. The adjacent interior angle is the supplement of 152°, so is 180°-152° = 28°.

The interior angles are 28°, 76°, 76°.  . . . .  matches choice C

4 0
4 years ago
What is 1 38/40 simplified
sesenic [268]
Your answer will be 1 19/20

hope this helps
5 0
4 years ago
Read 2 more answers
Other questions:
  • Kenneth got a pay check for $415 this week. He made 3.2% commission on total sales. What were his total sales? $12,968.75 $14,52
    14·1 answer
  • Point G is between points F and H. FH = 102, FG = 5x + 9, and HG = 9x − 5. Show your work.
    14·1 answer
  • Which statements about the local maximums and minimums for the given function are true? Choose three options. Over the interval
    5·2 answers
  • Número multiplicado que de 56
    13·1 answer
  • If the following fraction is reduced, what will be the exponent on the p? - 5p^5q^4/8p^2q^2 5 4 3 2
    12·2 answers
  • What kind of triangle is 15, 20, 22
    7·1 answer
  • F(n+1)=-0.5f(n) of the first term in the sequence is 120 what is f(5)?
    12·1 answer
  • 57:23
    7·2 answers
  • Factor completely 64^2 - 1
    7·1 answer
  • Sashia’s neighbor, Leslie, was also in need of food. Sashia divided what
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!