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
Viktor [21]
3 years ago
10

The length of a rectangular deck is 4 times its width if the decks perimeter is 30 ft, what is the decks area

Mathematics
1 answer:
omeli [17]3 years ago
8 0

Answer:

The area of the rectangular deck is 36 sq feet.

Step-by-step explanation:

Let the width of the deck  =  k ft

So, the length of the deck = (4k) ft

Now, perimeter = 30 ft

PERIMETER OF A RECTANGLE =  2(LENGTH + WIDTH)

⇒2( k + 4k)  = 30

or, 2 x 5k = 30   ⇒  10k = 30

⇒ k = 30/10 = 3

So, the width of the deck = k  = 3 ft

Length of the deck = 4k = 3 x 4  = 12 ft

Now, AREA OF A RECTANGLE =  LENGTH X WIDTH

So, the area of the rectangular deck = 3 ft x 12 ft

                                                             = 36 sq feet

Hence, the area of the rectangular deck is 36 sq feet.

You might be interested in
Suppose x is a real number and epsilon > 0. Prove that (x - epsilon, x epsilon) is a neighborhood of each of its members; in
kaheart [24]

Answer:

See proof below

Step-by-step explanation:

We will use properties of inequalities during the proof.

Let y\in (x-\epsilon,x+\epsilon). then we have that x-\epsilon. Hence, it makes sense to define the positive number delta as \delta=\min\{x+\epsilon-y,y-(x-\epsilon)\} (the inequality guarantees that these numbers are positive).

Intuitively, delta is the shortest distance from y to the endpoints of the interval. Now, we claim that (y-\delta,y+\delta)\subseteq  (x-\epsilon,x+\epsilon), and if we prove this, we are done. To prove it, let z\in (y-\delta,y+\delta), then y-\delta. First, \delta \leq y-(x-\epsilon) then -\delta \geq -y+x-\epsilon hence z>y-\delta \geq x-\epsilon

On the other hand, \delta \leq x+\epsilon-y then z hence z. Combining the inequalities, we have that  x-\epsilon, therefore (y-\delta,y+\delta)\subseteq  (x-\epsilon,x+\epsilon) as required.  

3 0
3 years ago
Tess and Alice are both on the swim team. Last practice, they each swam laps for the same amount of time, but Tess finished more
beks73 [17]

Answer:

wait so what is the numbers of distance they have swam?

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What's the ratio 20:44
Lelechka [254]
This becomes 10:22, then 5:11.
8 0
3 years ago
H=-5 and w=2, work out the value of 4h-3w
olganol [36]
You would simply have to plug in, or substitute, the given values in the equations.

So, H=-5, W=2 and the problem is 4h-3w

To plug them in, your new equation would be 4(-5)-3(2) and simplify. So it becomes -20-6 which = -26. 

And -26 would be your answer.
3 0
3 years ago
Read 2 more answers
PLEASE HELP ITS URGENT
Sveta_85 [38]
X^2-22x-48=0
x^2-24x+2x-48=0
x(x-24)+2(x-24)
(x+2)(x-24)

Solve by grouping if you are able to find distinct factors that multiply to the last term and add to the middle term...this method is rather easy with easy to manage numbers. Complete the square if you cannot find distinct factors that multiply to the last term and add to the middle term. Completing the square helps when the equation is in the form of a parabola.
6 0
3 years ago
Other questions:
  • Help ? If anyone knows a answer key or something that’ll help me, I’ll really appreciate it.
    9·1 answer
  • Show me five numbers that are at least 8 digits long under standard form
    13·1 answer
  • A scatter plot is made with the data shown:
    15·2 answers
  • Find the greatest common factor of the polynomial: 10x^5+15x^4-25x^3
    7·2 answers
  • Sarita bought 12 bananas at the farmer’s market. Each banana cost $0.35 cents. She paid with a $10 bill. How much change did she
    9·1 answer
  • Given the mean of a random variable, X, is 10 and P(X < 11) = 0.67. Find the standard deviation.
    7·1 answer
  • A family is driving 1,036 miles to visit the Blue Ridge Parkway. If they travel at an average of 56 miles per hour, how long wil
    11·1 answer
  • Please answer correctly !!!!!!!!! Will mark Brianliest !!!!!!!!!!!!
    13·2 answers
  • Help me find m PLEASE THANK YOUUUU
    10·2 answers
  • Calculator
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!