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Amiraneli [1.4K]
3 years ago
14

Write the sentence as an equation. 323 decreased by d equals 369

Mathematics
1 answer:
jarptica [38.1K]3 years ago
3 0
323 - d = 369

Thus, d has to be negative, and you get:

-d = 46
d = -46

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Answer:

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Step-by-step explanation:

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3 years ago
The length of a rectangle is 2 in longer than its width. if the perimeter of the rectangle is 44 in , find its area.
valkas [14]
P = 2(L + W)
P = 44
L = W + 2

44 = 2(W + 2 + W)
44 = 2(2W + 2)
44 = 4W + 4
44 - 4 = 4W
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10 = W

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L = 10 + 2
L = 12

A = L * W
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7 0
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Answer:

A = 12.56 m²

General Formulas and Concepts:

<u>Pre-Alg</u>

  • Order of Operations: BPEMDAS

<u>Geometry</u>

  • Area of a Circle: A = πr²
  • d = 2r

Step-by-step explanation:

<u>Step 1: Define</u>

d = 4 m

<u>Step 2: Find </u><em><u>r</u></em>

  1. Substitute:               4 = 2r
  2. Isolate <em>r</em>:                   2 = r
  3. Rewrite:                    r = 2 m

<u>Step 3: Find Area</u>

  1. Substitute:               A = π(2)²
  2. Substitute:               A = (3.14)(2)²
  3. Evaluate:                  A = (3.14)(4)
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jenyasd209 [6]

In order to calculate the volume of a cylinder, we can use the following formula:

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Where r is the base radius and h is the height.

If the circumference is 8, we have:

\begin{gathered} C=2\pi r \\ 8=2\pi r \\ r=\frac{4}{\pi} \end{gathered}

Now, calculating the volume, we have:

\begin{gathered} V=\pi(\frac{4}{\pi})^2\cdot10 \\ V=\frac{160}{\pi} \\ V=50.93 \end{gathered}

So the correct option is the second one.

3 0
1 year ago
14,219.92 The 9 in the ones place is _______ the value of the 9 in the tenths place.
Elza [17]

Answer:

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Step-by-step explanation:

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