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
masha68 [24]
3 years ago
5

The length of a rectangle is 5 m less than twice the width, and the area of the rectangle is 52 m^2. Find the dimensions of the

rectangle.
Mathematics
1 answer:
lys-0071 [83]3 years ago
4 0

length is 8m

Width is 6.5m

<u>Explanation:</u>

Let, width = b

So, length = 2b-5

area = 52m^{2}

We know,

area of rectangle = length X width

So, 52m^{2} = (2b-5) X b

On solving the above equation, we get

Width, b = 6.5m

length, l = 8m

You might be interested in
Jimmy decides to mow lawns to earn money. The initial cost of his electric lawnmower is ​$350. Electricity and maintenance costs
hodyreva [135]

Answer:

a) C(x) = 4x + 350

b) 13x; $13

c) 39

Step-by-step explanation:

a) Initial cost of lawnmower = $350

Maintenance cost for 1 lawn = $4

Maintenance cost for x lawns = 4x

Total cost function, C(x) = 4x + 350

b) Revenue = Cost + Profit

= C(x) + P(x)

= 4x + 350 + 9x - 350

= 13x

Charge per lawn = \frac{\text{Revenue}}{\text{Number of lawns}}

= \frac{13x}{13} = \$13

c) For Jimmy to make a profit, P(x) must be greater than zero i.e.

P(x) >0

9x-350 >0

9x >350

The smallest integer value of x that satisfies this inequality is 39. Therefore, Jimmy needs to mow 39 lawns in order to start making profit.

6 0
4 years ago
Find an explicit formula for the arithmetic sequence 12, 5, -2, -9,...<br> a(n)=
masha68 [24]

a is the beggining number and n is the amount of times needed to do this. if is   17 you would need to subtract 7 from the originol number 12 (a)  that many times.

3 0
3 years ago
Help Me Please!!! I can't get this wrong
8_murik_8 [283]

Answer:

41ft is your answer

left side=√(12²+12²)=16.97=17ft

perimeter=sum of all side=12+12+17=41ft

6 0
3 years ago
NEED HELP ON THIS QUESTION ASAP
Wittaler [7]

It's 140 ft^3

Step-by-step explanation:

multiply w*l*h to get the volume

5*4*7= 140

8 0
3 years ago
Subtract 7x^2−5xy+8y2 from −2x^2−15xy+9y^2
Digiron [165]

Answer

Subtract 7x^2 -5xy+8y^2 from -2x^2 -15xy+9y^2

then;

-2x^2 -15xy+9y^2 - (7x^2 -5xy+8y^2)

Remove the bracket we have;

-2x^2 -15xy+9y^2 - 7x^2 + 5xy - 8y^2

Like terms are those terms which have same variable to the same power.

Combine like terms;

-9x^2 -10xy+y^2

Therefore, Subtracting 7x^2 -5xy+8y^2 from -2x^2 -15xy+9y^2 we get -9x^2 -10xy+y^2

7 0
3 years ago
Other questions:
  • In slope intercept form what is the equation of the line having a slope of 5 and passing through the point (-6,-26)
    14·1 answer
  • Two hoses of different sizes are used to fill a pool. The smaller hose can fill the pool in 1.5 times as long as the larger hose
    10·1 answer
  • 298 as a percent help please
    14·2 answers
  • En la clase de Camila hay 28 estudiantes,
    12·1 answer
  • What is 5.5 + 3.1 need answer asap
    14·2 answers
  • The 2 pentagons above are similar. What is the area of the smaller pentagon?
    14·2 answers
  • How many minutes is 1/6?
    14·1 answer
  • Complete the proof for proving that the diagonals of an isosceles trapezoid are congruent.
    8·1 answer
  • Can someone please tell me how to expand and simplify 4(x+1)^2?
    12·1 answer
  • Please help, super confused!
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!