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Masteriza [31]
3 years ago
14

a store marks up sporting goods 27%. which expression equals the retail price of an item with an original cost of p dollars is i

t a. p times 0.27 B. p divided 0.27 C. p times 0.73 D. p times 1.27
Mathematics
1 answer:
ANTONII [103]3 years ago
8 0
D, ptimes 1.27 cause, 27/100=0.27 + 1 (retail p) = 1.27
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julia-pushkina [17]
1st. Try to make x by itself. Divide 12 on each side.
After it will look like this

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8 0
3 years ago
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Find the slope of each line and then determine if the lines are parallel, perpendicular or neither. If a value is not an integer
Aleonysh [2.5K]

As given by the question

There are given that the point of two-line

\begin{gathered} (1,\text{ 7) and (5, 5)} \\ (-1,\text{ -3) and (1, 1)} \end{gathered}

Now,

From the condition of a parallel and perpendicular line

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If the slopes are negative reciprocal then the lines are perpendicular

If the slopes are neither of the above are true then lines are neither

Then,

First, find the slope of both of line

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\begin{gathered} m_1=\frac{y_2-y_1}{x_2-x_1} \\ m_1=\frac{5_{}-7_{}}{5_{}-1_{}} \\ m_1=-\frac{2}{4} \\ m_1=-\frac{1}{2} \end{gathered}

Now,

For second-line,

\begin{gathered} m_1=\frac{y_2-y_1}{x_2-x_1} \\ m_1=\frac{1_{}-(-3)_{}}{1-(-1)_{}} \\ m_1=\frac{4}{2} \\ m_1=2 \end{gathered}

The given result of the slope is negative reciprocal because

\begin{gathered} -\frac{1}{2}=-(-\frac{2}{1}) \\ -\frac{1}{2}=2 \end{gathered}

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5 0
1 year ago
Why does (-4 1/2)^2 = 20.25? Thank you please hurry!
AnnZ [28]

Answer:

See below.

Step-by-step explanation:

Squaring a number means to multiply the number by itself.

For example, 3^2 means 3 * 3.

8^2 means 8 * 8.

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In each case above, you see that the number that is squared is multiplied by itself.

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(-4.5)^2 = (-4.5) * (-4.5)

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4.5 * 4.5 = 20.25

Therefore, (-4.5)^2 = 20.25

4 0
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Ann [662]

Answer:

4th option (sqrt(10))/2

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3 years ago
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