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Agata [3.3K]
3 years ago
10

The perimeter of the picture frame is 38 inches. The width of the frame is 7 inches, what is the length?

Mathematics
1 answer:
o-na [289]3 years ago
7 0

Answer:

12 inches

Step-by-step explanation:

So you know that the perimeter of a picture frame (a rectangle) is 2 widths plus 2 lengths.

Let x= lengths and w= widths

From the question we already know that w=7, so we can set up an equation that says:

2x + 2w = 38

2x + 2(7) = 38

2x+14 = 38

2x +14 -14 = 38-14

2x = 24

2x/2 = 24/2

x= 12

Since x= lengths =12

the length of the frame is 12 inches.

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lutik1710 [3]

Answer:

36 1/2 Inches

Step-by-step explanation:

I found this by first adding the fractions up, which gets us 9/6 or 1 and 3/6 or 1/2

12+8+15+1 1/2

12+8=20

20+15=35

35+1 1/2= 36 and 1/2 Inches

Hope this helped

6 0
3 years ago
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A shop has a piece of ribbon that is 25m long. They need to divide the ribbon into 8 equal pieces. How long will each piece of r
Vedmedyk [2.9K]

Answer:

Each piece will be 3.125m long.

Step-by-step explanation:

To find this, divide the amount of ribbon you have by the amount of pieces that you need.

25m/8pieces = 3.125m per piece

3 0
3 years ago
Is the equation minumum or maximum
amid [387]

Answer:

Minimum

Step-by-step explanation:

A minimum occurs when the line goes from decreasing to increasing

8 0
2 years ago
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A girl scout was selling boxes of cookies. In a month, she sold both boxes of chocolate chip cookies ($1.25 each) and boxes of p
Katena32 [7]

Answer:

Number of plain cookie boxes sold = 785 boxes

Step-by-step explanation:

Given: Cost of a chocolate chip cookie box = $1.25

Cost of a plain cookie box = $0.75

Total number of boxes sold = 1585

Total cost of the sold boxes = $1588.75

Let, number of plain cookie boxes sold = x

Number of chocolate chip cookie boxes sold = 1585 - x

So,

Total cost = total cost of the sold plain cookie boxes + total cost of the sold chocolate chip cookie boxes

$1588.75 = x ($0.75) + (1585 - x) ($1.25)

1588.75 = 0.75 x + 1981.25 - 1.25 x

0.5 x = 392.5

Therefore,

<u>Number of plain cookie boxes sold: x = 392.5 ÷ 0.5 = 785 boxes</u>

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2 years ago
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To find the answer, we can first find the age of Rolando in four year:

17+4
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We can then proceed to find the current age of Marisa,which is 3/2 of Rolando’s age calculated above:

Let Marisa’s age be y.

3/2 y =21
y = 21 × 2/3
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Therefore Marisa is currently 14 years old.

In three years, Marisa would be:

14+3
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Therefore, she will be 17 years old.

Hope it helps!
5 0
3 years ago
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