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
Alexxx [7]
3 years ago
8

2

Mathematics
1 answer:
IgorC [24]3 years ago
5 0

Answer:

L= 10 in

W= 7 in

Step-by-step explanation:

Given data

let the widht be x

W= x

L= x+3

P=34 in

We know that

P=2L+2W

34= 2(x+3)+ 2(x)

34= 2x+6+2x

collect like terms

34= 4x+6

34-6= 4x

28= 4x

divide both sides by 4

x= 28/4

x=7

Put x= 7 in

L= x+3

L= 7+3= 10

Hence the width is 7in the length is 10 in

You might be interested in
At the doctor’s office, Martin learns that his heart beats 360 times in 5 minutes.How many does his heart beat per minute?
TEA [102]
To find this answer, just divide 360 by 5 to find out how many times his heart beats in one minute instead of 5. Doing this will give you a final answer of 72 bpm.
8 0
3 years ago
jenna's rectangular garden borders a wall. she buys 80 ft of fencing. what are the dimensions of the garden that will maximize i
FrozenT [24]

Answer:

The  dimensions are x =20 and y=20 of the garden that will maximize its area is 400

Step-by-step explanation:

Step 1:-

let 'x' be the length  and the 'y' be the width of the rectangle

given Jenna's buys 80ft of fencing of rectangle so the perimeter of the rectangle is    2(x +y) = 80

                         x + y =40

                               y = 40 -x

now the area of the rectangle A = length X width

                                                  A = x y

substitute 'y' value in above A = x (40 - x)

                                              A = 40 x - x^2 .....(1)

<u>Step :2</u>

now differentiating equation (1) with respective to 'x'

                                      \frac{dA}{dx} = 40 -2x     ........(2)

<u>Find the dimensions</u>

<u></u>\frac{dA}{dx} = 0<u></u>

40 - 2x =0

40 = 2x

x = 20

and y = 40 - x = 40 -20 =20

The dimensions are x =20 and y=20

length = 20 and breadth = 20

<u>Step 3</u>:-

we have to find maximum area

Again differentiating equation (2) with respective to 'x' we get

\frac{d^2A}{dx^2} = -2

Now the maximum area A =  x y at x =20 and y=20

                                        A = 20 X 20 = 400

                                         

<u>Conclusion</u>:-

The  dimensions are x =20 and y=20 of the garden that will maximize its area is 400

<u>verification</u>:-

The perimeter = 2(x +y) =80

                           2(20 +20) =80

                              2(40) =80

                              80 =80

8 0
3 years ago
Find the value of x. <br><br><br><br><br><br><br> 60o<br><br> 79o<br><br> 70o<br><br> 47o
LekaFEV [45]
180-2(55)-x=0
180-110-x=0
70-x=0
-x=-70
x=70°
3 0
3 years ago
Amelia stores her gardening supplies in two cube shaped boxes. The smaller box has a volume of 100 inches to the third power. Am
Solnce55 [7]

Answer:

1000000 for the smaller box.

I need more info for the second box

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Sweet tea has 2 orange picks for every 5 green. I'd there are 21 picks in all, how many picks are orange?
loris [4]
21=5+2+5+2+5+2
So their are 6 orange picks
6 0
3 years ago
Other questions:
  • Raul paid $6,450 for shares of Nike. He sold it for $9,100. Express his capital gain as a percent of the original purchase price
    7·1 answer
  • 1. What are the four orders of operations
    12·2 answers
  • Missing side length
    11·1 answer
  • WILL GIVE BRANLIEST TO BEST ANSWER. 25 POINTS!
    15·1 answer
  • Rewrite the linear expression by factoring out the coefficient of the variable. -1/2x +6
    10·2 answers
  • I put in 6.32 for A but it’s still saying it’s wrong and I need the √ , I only need to answer this right to pass my summer schoo
    12·1 answer
  • What is:<br> 3/4 / 1/4<br> -4/5 / 8/9 <br> -5/6 / (-2/3)
    9·1 answer
  • What is the slope of (-2,5) and (-2, -6)
    12·1 answer
  • To find out how much raw material will be removed from a product your company manufactures, find the common denominator needed t
    6·1 answer
  • A.4 B.5 C.6 D.8<br> HELP PLEASE
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!