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Ganezh [65]
3 years ago
15

A rectangle has a length of 4 feet and a perimeter of 16 feet. What is the perimeter of a similar rectangle with a length of 9 f

eet?
Mathematics
1 answer:
kompoz [17]3 years ago
7 0
The answer is 42 feet I use substitution and subtract by 8
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Julius has a garden that has dimensions of 12 ft by 20 ft. Julius needs more room to plant some peppers, and determines the gard
alukav5142 [94]

Answer:

C. 3.4 feet

Step-by-step explanation:

Let, the amount of increase be 'x' feet.

As, the length and width of the garden are 20 ft and 12 ft respectively.

It is given that the area of the new garden is 360 ft²

Since, the length and width are increased by 'x'.

The new length and width are (x+20) ft and (x+12) ft respectively.

So, we get,

New area, A_{G} = length × breadth = (x+20) × (x+12)

i.e. 360 = x^{2}+32x+240

i.e. x^{2}+32x-120=0

i.e. (x+35.4)(x-3.4)=0

i.e. x = -35.4 and x= 3.4

Since, the value of x cannot be negative.

Thus, x = 3.4 feet.

5 0
2 years ago
1.6 hours to 0.95 hour increase and decrease?? also show the work.. thxs!
notka56 [123]

Answer:

Decrease

Step-by-step explanation:

If you look at the numbers in general 1.6 has a one in it. Meanwhile 0.95 is part of one. Think of it as money. Which would you rather have $1.60 or 0.95 cents.

5 0
2 years ago
Please help me !!!!!
kupik [55]

Whenever you want to write the equation of a parallel line through some point (h, k), you can ...

  • remove any added constant in the original given equation
  • replace x with (x-h)
  • replace y with (y-k)
  • rearrange the resulting equation to the form required by the problem.

Using this formula here, we get

... 2(y +5) = 3(x -2)

Your answer form requires you solve this for y.

... 2y + 10 = 3x -6 . . . . . eliminate parentheses

... 2y = 3x -16 . . . . . . . . subtract the constant on the left (10)

... y = (3/2)x -8 . . . . . . divide by 2


6 0
2 years ago
A mirror frame in the shape of an oval is shown below. The ends of the frame form semicircles: (5 points)
guapka [62]

Answer:

696.265 inches

Step-by-step explanation:

Radius = 27/2 = 13.5

2 semicircles + 2 lengths

(3.14 × 13.5²) + 2(62)

696.265 inches

4 0
3 years ago
It is not D, I just had this question.
serg [7]
Oh ok cool, thanks for the extra points though
8 0
3 years ago
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