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
OLga [1]
3 years ago
8

The length of a rectangular garden is 8m greater than twice the width the area of the garden is 280m^2 what is the width of the

garden
Mathematics
2 answers:
yarga [219]3 years ago
5 0

Step-by-step explanation:

Given :-

The length of the garden 8m greater than 2 times the width.

Area of the garden is 280 m²

Let us consider the length as x and width as y.

Sp, we can day length as :-

x = 8 + 2y ---(1)

Now, we know that:-

Area of Rectangle = Length × Breadth

280 = x * y

We can replace the value of x now,

280 = y × ( 8 + 2y)

280 = 8y + 2y²

2y² + 8y - 280 = 0

y² + 4y - 140 = 0

Factorise it.

(y -10)(y + 14)

Cancelling -ve value, we get the width as 10 metres.

<u>Hope</u><u> </u><u>it</u><u> </u><u>helps</u><u> </u><u>:</u><u>)</u>

Firlakuza [10]3 years ago
3 0

Answer:

Step-by-step explanation:

Width = w

Length = 2w + 8

Area of rectangular garden = 280 square meter

length * width = 280

(2w + 8 ) *w = 280

2w * w + 8*w = 280

2w² + 8w = 280

2w² + 8w - 280 = 0

Divide the whole equation by 2

w² + 4w - 140 = 0      

w² + 14w - 10w - 14 *10 = 0

w(w + 14) - 10(w + 14) = 0

(w + 14)(w - 10)= 0

w - 10 = 0       {Ignore w + 14, as measurements will not be -ve}

w = 10 m

l = 2*10 +8

= 20 +8

l  = 28 m

You might be interested in
Can somebody help me
Sergeeva-Olga [200]

cis(x)=\cos x+i\sin x\\\\cis15^o=\cos15^o+i\sin15^o\\\\\cos15^o=\dfrac{\sqrt6+\sqrt2}{4};\ \sin15^o=\dfrac{\sqrt6-\sqrt2}{4}\\\\\text{therefore}\\\\7cis15^o=7\left(\cos15^o+i\sin15^o\right)=7\cos15^o+7i\sin15^o\\\\=7\left(\dfrac{\sqrt6+\sqrt2}{4}\right)+7\left(\dfrac{\sqrt6-\sqrt2}{4}\right)i

6 0
3 years ago
What is the area of the given sector
Romashka-Z-Leto [24]
Assuming the shape is a piece of a circle, you can determine the ratio of the shape to a full circle. A full circle will have 360 degree but this shape is only 40 degree. Then the ratio would be: 40/360= 1/9 full circle.

Then, using the circle area formula, the area of the 1/9 circle would be: 
full circle area= pi * r^2
full circle area= 22/7 * 6^2
full circle area= 792/7
1/9 full circle area= 792/7*9= 88/7 = 12.57
3 0
3 years ago
2) What are the dimensions of a rectangular prism that has a volume of 2x4 -1?
densk [106]
The depth is what makes this a three dimensional figure since there are three dimensions: length, width, and depth! All three of these dimensions are used to find the volume of a rectangular prism.
4 0
3 years ago
Will mark BRAINLIEST!! — Point H is the circumcenter of triangle DEF. Which must be true? Check ALL that apply. See image.
Margarita [4]

Answer:

A, C, F

Step-by-step explanation:

Definition: The circumcenter is  the center of the triangle's circumcircle - the circle that passes through all three of the triangle's vertices. If point H is the circumcenter of the triangle DEF, then the circumcircle passes through its vertices D, E and F (option A is true).

Option B is false, the circumcircle doesn't pass through the points L, M and N. This option is true for inscribed circle, not for circumcircle.

Option C is true, because HD and HE are the radii of the circumcircle.

Option D is false. This option is true for inscribed circle, not for circumcircle.

Option E is false. This option is true for inscribed circle, not for circumcircle.

Option F is true, because both these angles are right angles.

8 0
2 years ago
I only need #8, but if you want to do the others you can.
lutik1710 [3]
Ralphs is 7.5x+10
frank’s is 10x
7 0
3 years ago
Read 2 more answers
Other questions:
  • Cristina wants to make centerpieces for a dinner party. She buys 7 cylindrical vases and plans to fill them each halfway with co
    10·2 answers
  • What is the constant variation of y=5x
    8·2 answers
  • What is the area of the rectangle?
    9·2 answers
  • 1? + 2? + 3? = 51. 2? - 1? = 4. List 1?, 2?, 3? in the format of 1?,2?,3? without spaces. (Find 1?,2?,3? in integer form)
    11·1 answer
  • Suppose you have a $15 coupon that can be used on any purchase over $100 at your favorite clothing store. The discounted price o
    7·2 answers
  • BRAINLIESTTT ASAP! PLEASE HELP ME :)
    13·2 answers
  • Sam makes candles. She has two pounds of candle wax which she poured into eight molds. What is the average of each mold?
    10·1 answer
  • HELP ME OUT PLEASEEEEEEEEEEEe
    5·1 answer
  • Sheila's entertainment center has enough space for a television that is 12 inches long and 15 inches high. TVs for Less is selli
    6·1 answer
  • 7b+12=5b what is the value for b?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!