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
zalisa [80]
3 years ago
8

The width of a rectangle is 6 in. less than its length. The perimeter is 68 in. What is the width of the rectangle?

Mathematics
2 answers:
stepan [7]3 years ago
7 0
Length= y in.
Width= (y-6) in.
Perimeter = 2(L*W)
Perimeter=2L+2W
68in.=2(y)+2(y-6)
68=2y+2y-12
68=4y-12
68+12=4y
4y=80
y=20
Length= 20 inches, width =14 inches
kolezko [41]3 years ago
7 0
To answer let the length of the rectangle be represented by L. With the condition from the problem, the width is L - 6. The perimeter of the rectangle is twice the sum of the length and width. With the given values, the equation becomes,
                                  P = 2L + 2W
                                 68 in = 2L + 2(L - 6)
The value of L from the equation is 20 inches. Therefore, the width is equal to 14 inches. 
You might be interested in
Help!! this is due Friday and I forgot how to do math​
Hatshy [7]
I pretty sure it is A I looked it up.
5 0
2 years ago
Read 2 more answers
The equation y 16t 2 18t 405 describes the height in feet of a ball thrown downward at 18 feet per second from a height of 405 f
kumpel [21]

Answer:

Ball hits the ground after 4.5 sec

Step-by-step explanation:

Let a -1, so that the leading coefficient is positive

So our quadratic is

-1 \times (16t^2 +18t -405)

The key coefficients of two binomial variables can be 1 and 16, or 2 and 8, or 4 and 4, for the leading coefficient of 16.

Yet they can't actually be 4 and 4 because the linear (x) term coefficient has to be a multiple of 4, which it isn't and leading coefficients 1 and 16 on the binomial factors is not likely.

So, 2 and 8 taken as the leading coefficients of  two binomial factors.

For constant  405, possible factorizations are (81\times 5, 27 \times 15, 9 \times 45).

(16t^2 +18t -405) = (8t + 45) (2t - 9)

Taking first factor, thus we find  negative value for given time t. But  second time equivalent to zero gives the value of 4.5 for t

Thus ball hits the ground after 4.5 sec

.

3 0
3 years ago
3+m+4≤5 please help due tommorow
ruslelena [56]
3+m+4 \leq 5 \\\\ m+7 \leq 5 \\\\ m \leq 5-7 \\\\ m \leq -2 \\\\ \boxed{m=(-\infty;-2]}
7 0
3 years ago
Read 2 more answers
(F-32). Convert 12°C to
Kaylis [27]

Answer:

54

Step-by-step explanation:

multiply by 1.8 and add 32

12*1.8=21.6

21.6+32=53.6

53.6 rounded = 54

7 0
3 years ago
Help Asap! 20 Points What is value of x and y?
Sergio039 [100]
The answer is a i think but if u get it wrong im sorry
4 0
3 years ago
Other questions:
  • Devaughn's age is two times Sydney's age. The sum of their ages is 51 . What is Sydney's age?
    8·1 answer
  • Last year, the Humane Society of a certain city took in 21,320 animals. If the Humane Society was open all 52 weeks that year, h
    12·2 answers
  • How are multiplying whole numbers and multiplying decimals similar and different
    6·2 answers
  • What divided by 2 equals -12
    5·2 answers
  • 2(t+5)+t=4<br> Solving linear equations
    6·1 answer
  • A square has an area of 4 m2. what is the length of each side?​
    7·1 answer
  • Please help meeeeeeeeeeeee
    10·1 answer
  • BEWARE OF THE BOTS
    5·1 answer
  • If 2k - 3 = 9 (k+7)-3 then k is ????
    6·2 answers
  • Helppppppppppppppppppppppppppppppppppppppp
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!