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
AURORKA [14]
3 years ago
12

a rectangle has a length that is 4 times longer than it's width. If the total area of the rectangle is 121 square feet, what is

the length (longer side) of the rectangle​
Mathematics
2 answers:
larisa86 [58]3 years ago
5 0

Answer:

L = 22 ft

Step-by-step explanation:

Let L and W represent the length and width respectively.

L = 4W, or W = L/4.  Use W = L/4 because we want to solve for W, not for L.

Area of a rectangle:  A = L · W

Here,                          A =  L · L/4 = 121 ft²

Mult. both terms by 4 removes the fraction:

                                         L² = 484

Finding the square root of this result:  L = 22

The length of the rect. is 22 ft.

leva [86]3 years ago
3 0

Answer:

22

Step-by-step explanation:

Width - x

Length - 4x

Area=x*4x=4x²

Area=121

4x²=121

x<em>²=</em>121/4

x=√(121/4)=√(11²/2²)=11/2 - width

Length = 4x=4*(11/2)=22

You might be interested in
A car travels 65 km in 45 minutes what is the average speed of the car in km/h
nekit [7.7K]
So to begin your problem, you know that your car already has an average which is 65km/45 mins. The problem wants you to change this to km/hr. This means that you need to convert minutes to hours. A simple way to do this is by using fractions. 
Set your problem up with fractions similar to this:
65km/45 mins x 60 mins/1 hr.
the whole point is to cancel out your minutes, and leave the hours as your new unit for the denominator
65km/45 x 60/1 hr. 
now you want to reduce (I divided the first fraction by 5)
13km/9 x 60/1 hr.
780km/9hrs. 
That would be your answer. If someone can double check my math that would be fantastic.


5 0
3 years ago
Read 2 more answers
Please helpppp me step my step all the wayyy
Alla [95]

Answer:

carlas had the better deal

Step-by-step explanation:

if you buy an suitcase at $85 with 20% discount, you will pay 85 - 17 = 68 dollars.

if you buy an suitcase at $75 with 15% discount, you will pay 75 - 11.25 = 63.75

divide 20% by a 100 =0.2 than times 0.2 by $85 which will equal 17 subtract 17 from $85

do the same for the second one.

7 0
3 years ago
On three consecutive flips of a coin, what is the probability that all three produce the
natulia [17]
Probability of 1/4

2 possibilities x 2 possibilities x 2 possibilities = 8 total possibilities:
Heads, Heads, Heads
Heads, Heads, Tails
Heads, Tails, Tails
Heads, Tails, Heads
Tails, Tails, Tails
Tails, Tails, Heads
Tails, Heads, Heads
Tails, Heads, Tails

2 of which result in all of the same outcome:
Heads, Heads, Heads
Tails, Tails, Tails

2 results/ 8 possibilities = 2/8 = 1/4
7 0
3 years ago
How to find the complement of a 58 degree angle
Butoxors [25]

Answer:

32°

Step-by-step explanation:

Complementary angles sum to 90°

the complement of 58° is

90° - 58° = 32°

4 0
2 years ago
Read 2 more answers
Find the value of x.<br> Z<br> Y<br> 11x – 10<br> 80°<br> W<br> X
german

Answer: I think the value of x is 20 but im not sure

Step-by-step explanation:

no explanation here

7 0
3 years ago
Other questions:
  • What is the decimal equivalent of 10/3? its more than 1 and its not 3.3333 or 0.3 HELP PLS&gt;
    13·1 answer
  • What is the LCM of xy(x + 1) and x(x + 2)?
    8·1 answer
  • What is the equation of the graph below?
    11·2 answers
  • An item on sale costs 45% of the original price. The original price was $43.
    11·1 answer
  • Solve (x-4)2 = 5.<br> Help me please
    8·1 answer
  • Will give you (Brainliest)
    6·2 answers
  • The taxi fare in Las Vegas is $3.50 for the first mile, and $2 for each additional mile after the first. If you have $29.50, how
    12·1 answer
  • Tyler mows 7 lawns every week. He earns $10 for mowing each lawn. How much will he earn in 6 weeks?
    14·1 answer
  • How do you graph x = 1/4
    15·2 answers
  • Can someone write me a paragraph proof for this problem
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!