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ch4aika [34]
3 years ago
6

Plzz help Solve for x x ÷3 3/10 =2 2/5

Mathematics
1 answer:
Svet_ta [14]3 years ago
3 0

Answer:

\huge\boxed{x=7\dfrac{23}{25}}

Step-by-step explanation:

x\div3\dfrac{3}{10}=2\dfrac{2}{5}\\\\\text{convert the mixed number to the impropper fraction}\\\\3\dfrac{3}{10}=\dfrac{3\cdot10+3}{10}=\dfrac{33}{10}\\\\2\dfrac{2}{5}=\dfrac{2\cdot5+2}{5}=\dfrac{12}{5}\\\\x\div\dfrac{33}{10}=\dfrac{12}{5}\\\\x\times\dfrac{10}{33}=\dfrac{12}{5}\qquad\text{multiply both sides by}\ \dfrac{33}{10}\\\\x\times\dfrac{10\!\!\!\!\!\diagup}{33\!\!\!\!\!\diagup}\times\dfrac{33\!\!\!\!\!\diagup}{10\!\!\!\!\!\diagup}=\dfrac{12}{5}\times\dfrac{33}{10}\\\\x=\dfrac{396}{50}

x=\dfrac{198}{25}\\\\x=\dfrac{175+23}{25}\\\\x=\dfrac{175}{25}+\dfrac{23}{25}\\\\x=7\dfrac{23}{25}

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Answer:

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Step-by-step explanation:

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The question is in the screenshot attached. Thank you!
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Answer:

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Step-by-step explanation:

Domain of the function are those x values where the function is defined, For this case, -4 < x < 4

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The function is positive if the graph o the function is above x-axis. For this case, the function is positive at the interval (0, 2)

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Step 1. Simplify
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Step 2. Collect like terms
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