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3 years ago

William bought 6 CDs for $8.97 each. about how much did he spend?

Mathematics

1 answer:

neonofarm [45]3 years ago

3 0

If you multiply 6 by 8.97, you get 53.82. So you would round up, therefore the answer is 54$.

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Which system of inequalities is represented by the graph?

alexgriva [62]

Answer:

$\left\{\begin{array}{l}y\ge -x-6\\ \\ y\le 2x+4\end{array}\right.$

Step-by-step explanation:

The diagram shows shaded region which boundary is bounded with two lines.

<u>Equation of the 1st line:</u>

This line passes through the points (-6,0) and (0,-6), so its equation is

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<u>Equation of the 2nd line:</u>

This line passes through the points (-2,0) and (0,4), so its equation is

$\dfrac{x-(-2)}{0-(-2)}=\dfrac{y-0}{4-0}\\ \\\dfrac{x+2}{2}=\dfrac{y}{4}\\ \\y=2x+4$

The origin belongs to the shaded region, so it must satisfy both inequalities, so

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Note that signsare with notion "or equal to" because lines are solid.

Answer:

$\left\{\begin{array}{l}-x-6\le y\\ \\2x+4\ge y\end{array}\right.\Rightarrow \left\{\begin{array}{l}y\ge -x-6\\ \\ y\le 2x+4\end{array}\right.$

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Answer:

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Step-by-step explanation:

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3 years ago

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ipn [44]

Answer:

Step-by-step explanation:

1985:

x = 5 years ( 1980 to 1985- 5 years)

0.142x + 1.93 = 0.142*5 + 1.93

= 0.71 + 1.93

= $ 2.64

1999:

x = 19 years

0.142x + 1.93 = 0.142*19+ 1.93

= 2.698 + 1.93

=4.628 = $ 4.63

2010:

x = 30 years

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The answer would be the first person said 6, -26,102

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