3 years ago

HELPPP!!!! What is one solution? Eliminate any extraneous solutions.

Mathematics

1 answer:

olga nikolaevna [1]3 years ago

4 0

Answer:

The correct answer is x= 4/5 because you cannot take the root of a negative number

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A wall in Marcus's bedroom is 8 2/5 feet high and 18 1/3 feet long. If he paints 1/2 of the wall blue, how many square feet will

goldenfox [79]

$\bf \textit{so the area of the wall is then }8\frac{2}{5}\times 18\frac{1}{3}
\\\\\\
\textit{how much is }\frac{1}{2}\textit{ of that product?}\quad \cfrac{8\frac{2}{5}\times 18\frac{1}{3}}{2}\\\\
-------------------------------\\\\$

$\bf \begin{cases}
8\frac{2}{5}\implies \cfrac{8\cdot 5+2}{5}\implies &\cfrac{42}{5}\\\\
18\frac{1}{3}\implies \cfrac{18\cdot 3+1}{3}\implies &\cfrac{55}{3}
\end{cases}
\\\\\\
\cfrac{8\frac{2}{5}\times 18\frac{1}{3}}{2}\implies \cfrac{\frac{42}{5}\cdot \frac{55}{3}}{\frac{2}{1}}\implies \cfrac{\frac{42\cdot 55}{5\cdot 3}}{\frac{2}{1}}\implies \cfrac{42\cdot 55}{5\cdot 3}\cdot \cfrac{1}{2}\implies \cfrac{42\cdot 55\cdot 1}{5\cdot 3\cdot 2}
\\\\\\
\cfrac{2310}{30}\implies 77$

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4 years ago

11. Find the slope and y-intercept of the line.<br> y = 7/5x-3

zysi [14]

Answer:

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Step-by-step explanation:

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3 years ago

The equation 8c = $40.80 represents the cost of 8 t-shirts, with c representing the cost of one t-shirt. How much do 5 t-shirts

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