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ki77a [65]
2 years ago
9

Lena is building a fence around her rectangular flower garden. The width is twice the length. The perimeter of the garden is 30

ft. What are the length and width of the garden?
Mathematics
2 answers:
Anna35 [415]2 years ago
6 0

Answer:

  • length: 5 ft
  • width: 10 ft

Step-by-step explanation:

The formula for the perimeter is ...

  P = 2(L +W)

We are also told the relation between length and width:

  W = 2L

Using these formulas with the given value of perimeter, we have ...

  30 = 2(L +2L)

  30 = 6L . . . . . . . simplify

  5 = L . . . . . . . . divide by 6

  W = 2(5) = 10 . . . find W using the value of L

The garden is 5 feet long and 10 feet wide.

Sonja [21]2 years ago
5 0

Answer:

Im not sure but i believe 60

Step-by-step explanation:

30x2=60

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Step-by-step explanation:

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3 0
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The local coffee shop offers a 10 percent discount to senior citizens on a cup of coffee and a donut. If the regular price is $2
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8 0
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Read 2 more answers
Plot point C(2,7). If M is the midpoint of CD , what are the coordinates of D?
Y_Kistochka [10]

Answer:

The coordinates of D is (-4,-9)

Step-by-step explanation:

Given

C = (2,7)

<em>M=(-1,-1)  ----- Missing part of question</em>

Required

Determine the coordinates of D

<em>Let the coordinates of D be (x₂,y₂)</em>

<em>We'll solve this question using mid point formula;</em>

<em></em>M(x,y) = (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})<em></em>

<em>Where</em>

C(x_1,y_1) = (2,7)    and     M(x,y) = (-1,-1)

Put these values in the formula

(-1,-1) = (\frac{2+x_2}{2},\frac{7+y_2}{2})

By comparison;

-1 = \frac{2+x_2}{2}  and -1 = \frac{7+y_2}{2}

-1 = \frac{2+x_2}{2}

Multiply both sides by 2

-2 = 2 + x_2

Subtract 2 from both sides

-2 -2 = x_2

x_2 = -4

-1 = \frac{7+y_2}{2}

Multiply both sides by 2

-2 = 7 + y_2

Subtract 7 from both sides

-2 - 7 = y_2

y_2 = -9

<em>Hence, the coordinates of D is (-4,-9)</em>

4 0
3 years ago
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