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inysia [295]
3 years ago
11

a rectangular deck has a length of 12 feet and a perimeter of 36 feet. what is the width of the deck and what is the area of the

deck.
Mathematics
2 answers:
11Alexandr11 [23.1K]3 years ago
8 0

Answer:

6

Step-by-step explanation:

perimeter is how much it is all the way around

we know that the perimeter is 36 and the length is 12

12+12=24 (there are 2 lengths)

36-24=12

12/2=6 (there are 2 widths)

hram777 [196]3 years ago
6 0

Answer:

The deck is not rectangular

Width: 12

Area: 144

Step-by-step explanation:

<em>Width:</em>

36-(12*2)=24

36-24=12

<em>Area</em>

<em>12*12=144</em>

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Can someone help me with this with step by step explanation plssss
liberstina [14]

Answer:

m = - 16/10

= - 1.6

Step-by-step explanation:

m2 + 8m

(the - 16 here is divided into 10 m's as you can see in m2 and 8m)

So, in order to find out what 1m is, you have to <em>divide</em> - 16 by 10, which gives you - 1.6

Good luck!

5 0
3 years ago
Honey and Money are twin brothers. Mother wants to equally divide a rectangular shaped cake of 5cm wide and 6cm long. Find the l
tatuchka [14]

Answer:

Length of rectangular cake = 5 cm

Breadth of rectangular cake = 6 cm

Area of rectangle = 5 cm × 6 cm =30 cm²

If cake is equally distributed between Honey and Money, then areas of two parts should be equal.

So, Amount of cake that Honey and money got \frac{30}{2}=15

Share of each (Honey and Money)=15 cm²

So, if the third cake if it was cut diagonally ,the cake must have some height.

Let the height of cake be H.

So, Height of third cake =\sqrt{L^2+B^2+H^2}\\\\=\sqrt{5^2+6^2+H^2}\\\\=\sqrt{61+H^2}

If , H=0 that is height is negligible having 0 thickness,

Then the Length of third cake, which is divided into two parts=√61=7.81 cm

5 0
3 years ago
How to solve the polynomial 5x+3y+6x+9y
ANEK [815]

5x+3y+6x+9y

All you'd need to do is combine like terms. So add 5x to 6x and add 3y to 9y.

(5x+6x)+(3y+9y)

Final Answer: 11x + 12y

3 0
3 years ago
Read 2 more answers
15. A rectangle has a length of 2x - 1 and a width of 3x + 7. Find the perimeter of this rectangle.
andrew11 [14]

Answer:

10x + 12 and 6x² + 11x - 7

Step-by-step explanation:

The perimeter (P) of a rectangle is calculated as

P = 2l + 2w ( l is length and w is width )

   = 2(2x - 1) + 2(3x + 7) ← distribute parenthesis

    = 4x - 2 + 6x + 14 ← collect like terms

     = 10x + 12

--------------------------------------------------

The area (A) of a rectangle is calculated as

A = lw

   = (2x - 1)(3x + 7) ← expand using FOIL

    = 6x² + 14x - 3x - 7 ← collect like terms

    = 6x² + 11x - 7

7 0
3 years ago
How can I use two unit multipliers to convert 42 centimeters to feet?
eimsori [14]

Answer:

1.38 ft

Step-by-step explanation:

42 cm x <u> 3.28 ft  </u>

              100 cm

= 1.38 ft

there are plenty of printable unit conversion on google

6 0
4 years ago
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