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Radda [10]
3 years ago
7

If you have 36 ft of fencing, what are the bases and side lengths of the different parallelograms you could enclose with the fen

cing? Consider only whole-number dimensions.
Mathematics
1 answer:
serious [3.7K]3 years ago
4 0

Answer:

(l,w) = (1,17)

(l,w) = (2,16)

(l,w) = (3,15)

---

---

-

(l,w) = (9,9)

Step-by-step explanation:

Given

P = 36ft --- perimeter

l \to length

w \to width

Required

Possible dimension of different parallelogram

The perimeter is calculated as:

P=2(l+w)\\\\\\

So,we have:

2(l+w)=36

Divide by 2

l + w = 18

Since l and w must be positive integers, the possible dimensions are:

(l,w) = (1,17)

(l,w) = (2,16)

(l,w) = (3,15)

---

---

-

(l,w) = (9,9)

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Melissa wants to purchase a digital camera.The listed price of the camera is $195.99.The camera is no sale for 10% off and Melis
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Answer:

The 10% off sale will save Melissa <u>$10.49</u>.

Step-by-step explanation:

Given:

The listed price of the camera is $195.99.

The camera is no sale for 10% off and Melissa has a coupon for 5% off the sales tax is 7%.

Now, to find the money Melissa will save of the 10% off sale.

So, to get the price of camera of the 5% off sale:

(195.99-5\%\ of\ 195.99)

=(195.99-\frac{5}{100}\times 195.99)

=(195.99-9.80)

=186.19

Now, adding the sales tax:

186.19+7\%\ of\ 186.19

=186.19+\frac{7}{100} \times 186.19

=186.19+13.03

=199.22

Thus, the price is $199.22.

Now, to get the price of 10% off sale:

195.99-10\%\ of\ 195.99

=195.99-\frac{10}{100} \times 195.99

=176.39

So, adding sales tax:

176.39+7\%\ of\ 176.39

=176.39+\frac{7}{100} \times 176.39

=188.73

Hence, the price is $188.73.

Now, to get the money 10% off sale will save Melissa:

199.22-188.73

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Therefore, the 10% off sale will save Melissa $10.49.

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3 years ago
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How do you use the law of cosines or law of sines if you are given a=13 m, b=8.5 m, and c=9 m?
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Does the table show a direct proportional relationship? If so, what is the constant of proportionality?
lesantik [10]

Answer:

C. Yes, 3.5.

Step-by-step explanation:

If there is a relationship of direct proportionality for every ordered pair of the table, then the constant of proportionality must the same for every ordered pair. The constant of proportionality (k) is described by the following expression:

k = \frac{y}{x} (1)

Where:

x - Input.

y - Output.

If we know that (x_{1}, y_{1}) = (13, 45.5), (x_{2}, y_{2}) = (14, 49) and (x_{3}, y_{3}) = (15, 52.5), then the constants of proportionalities of each ordered pair are, respectively:

k_{1} = \frac{y_{1}}{x_{1}}

k_{1} = \frac{45.5}{13}

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k_{2} = \frac{y_2}{x_2}

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k_{2} = \frac{7}{2}

k_{3} = \frac{y_{3}}{x_{3}}

k_{3} = \frac{52.5}{15}

k_{3} = \frac{7}{2}

Since k_{1} = k_{2} = k_{3}, the constant of proportionality is 3.5.

8 0
3 years ago
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