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
spin [16.1K]
4 years ago
8

The length of a rectangle is 4x+1 and the width is 2x+5. Write an expression and simplify it in terms of x: whats the perimeter

of the rectangle and whats the area of the rectangle
Mathematics
1 answer:
enot [183]4 years ago
5 0

Answer: ( P - 10 )/12, (2x + 5)(4x + 1)

Step-by-step explanation:

The length of the rectangle = 4x + 1,

The breadth = 2x + 5

Formula for finding perimeter of a rectangle, = 2( L + B )

Now, substitute for L and B in the formula, open the formula and simplify,

= 2(4x + 1 + 2x + 5 )

= 2(6x + 5 )

= 12x + 10

Therefore, the perimeter (p)of the rectangle, = 12x + 10.

If P = 12x + 10

12x = P - 10

x = ( P - 10 )/12

Area of a rectangle = L x B

=( 4x + 1 )( 2x + 5)

We therefore open the brackets

(4x + 1)(2x + 5)= 4x X 2x + 4x X 5+ 1 X 2x + 1 X 5

= 8x² + 20x + 2x + 5

A = 8x² + 22x + 5

A = (2x + 5)(4x + 1)

You might be interested in
PLEASE HELP!! 10 POINTS!!WILL MAKE BRAINLIEST
Grace [21]

58):  Solution =====>    Letter Choice,  (C)      1.25m      =       1.50(m      -      2)

Let's solve your equation step-by-step.

1.25m       =      1.5(m     −     2)

Step 1: Simplify both sides of the equation.

1.25m     =        1.5(m    −      2)

1.25m     =      (1.5)(m)       +        (1.5)(−2)                                  (Distribute)

1.25m       =       1.5m          +           −3

1.25m        =       1.5m       −       3

Step 2: Subtract 1.5m from both sides.

1.25m      −       1.5m      =      1.5m     −      3      −       1.5m

−0.25m           =            −3

Step 3: Divide both sides by -0.25.

-0.25m/ -0.25        =          -3/ -0.25

m       =========>    12

Answer    ===========>      m       =        12



59):   Let  your Number be:    D  

Solution:     =====>    7D       =      5D        -      3   =====>  -3/2    =====>    -1.5

Seven Times a number:

7   *     D      or    7(D)

Three Less than Five Times that Number:

5D     -     3

7D       =        5D       -    3

Solve for D:

7D   =    5D     -    3

Subtract   5D   from both sides:

7D   -    5D      =    5D     -     3      -   5D

2D       =           -3

Divide both sides by  2:

2D/2     =       -3/2

D                   =             -3/2

Answer  ==>  D  ====>      -3/2     ========>    Letter Choice, (F)      - 1.5




60):    Letter Choice,   (C),    3x      -     9      =    5x  

Let's solve your equation step-by-step.

3x       −      9       =         5x

Step 1: Subtract 5x from both sides.

3x      −       9       −      5x      =      5x     −      5x

−2x       −     9       =      0

Step 2: Add 9 to both sides.

−2x      −       9        +      9       =       0       +      9

−2x       =       9

Step 3: Divide both sides by -2.

-2x/ -2      =      9/ -2

x        =            -9/2

Answer   ========>         x         =       -9/2       =======>  4.5




61):   Subtract:

500    -      120

=      380

Need to total 500:

380

Find Number of Weeks Divide:

380/20    =      19  Weeks

7   *   19     =    133  

Days it will take Nichole to save  $500.00 =======>   133 Days





62):    Gridded Response:

Solve:

- 2(x     -     1 )       +        5x       =     2(2x        -     1 )  ======>      x     =      4

( -2 )(x)     +     ( -2)( - 1 )    +     5x     =   (2)(2x)      +    (2)( - 1 )

Distribute:

- 2x     +  2     +    5x     =     4x      +        - 2

( - 2x     +    5x )       +        (2)        =       4x     -     2       (Combine  Like terms):

3x    +   2        =    4x       -    2

3x         +      2     =      4x      -   2

Subtract   4x   From both sides:

3x     +    2      -     4x       =       4x     -     2      -    4x     -     x     +   2     =      -2

Subtract  2   from both sides:

-x     +     2    -   2       =         -2       -      2

-x         =       -4

Divide both sides  by     -1:

-x/ -1      =      -4/ -1

x         =     4

Answer   =====>      x      =      4           Check the Graph down below  for Gridded Response on Number 62.      






Hope that helps!!!                                            : )     _P_












6 0
3 years ago
If the homogeneity of variance assumption is violated in an independent groups t test, this means _________. the populations fro
Anit [1.1K]

Answer:

the populations from which the samples were drawn have different standard deviations

Step-by-step explanation:

Given that the assumption of homogeneity of variance is the same as the assumption of the independent samples t-test which asserted that all comparison groups possess the same variance

Therefore, if the homogeneity of variance assumption is violated in an independent groups t-test, this means "the populations from which the samples were drawn have different standard deviations."

5 0
3 years ago
Consider this system of inequalities. x + y ≤ –3 y < StartFraction x Over 2 EndFraction Which graph shows the solution for th
miss Akunina [59]

Answer:

the answer is c

Step-by-step explanation:

i just did it

6 0
3 years ago
. Ms. Ache is paid $1300 per week but is fined $100 each day she is late to work. Ms. Ache wants to make at least $3,000 over th
DerKrebs [107]

Answer:

1250(3) = 3750

 

3750 - 100d ≥ 3000

-100d ≥ -750

d ≤ 7.5

 

She can miss no more than 7 days to make $3000.

Step-by-step explanation:

5 0
4 years ago
Ben has agreed to play fewer video games and spend more time studying. He has agreed to play less than ten hours of video games
forsale [732]
5 1/2 of 3 = 16.5

 hope this helped!!
6 0
3 years ago
Other questions:
  • The elevators in the Landmark Tower, in Yokohama, Japan are among the fastest in the world. They accelerate upward at 3.125 m/s/
    5·2 answers
  • Solve for y. 12x +2y = 26x -70 a) y= 7x - 35 b) y= 20x -35 c) y= 2x + 72 d) x= 2y +36x -70 I CAN'T TELL IF IM DUMB OR NOT
    5·2 answers
  • The current size of an image on Sandra's computer is shown below:
    5·2 answers
  • Can you help me with this
    14·1 answer
  • A rocket is launched at the rate of 11 feet per second from a point on the ground 15 feet from an observer. To 2 decimal places
    7·2 answers
  • How would I give 12.50 dollars to 350 people evenly
    9·1 answer
  • Jalen is considering a 7/23 balloon mortgage with an interest rate of 3.5% to purchase a house for $265,000. what will be her ba
    6·2 answers
  • Can you help me solve 6(2x+4) guide me through the steps please thank you<br> C
    6·1 answer
  • 1. Simplify (–6x2 + x – 5) + (9x2 – 3x+6). ​
    15·1 answer
  • What is the remainder to the following polynomial division problem?<br> (x^2+ 6x + 5) / (x + 2)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!