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Mathematics

1 answer:

igor_vitrenko [27]3 years ago

4 0

Answer:

C. Robert can read of a page every minute.

Step-by-step explanation:

Unit rate is usually based off of a unit of time and what type of time, however, it is 1.

For example, the unit rate MPH. This means "Miles per 1 hour".

Or take another example, KPH, or "Kilometers per 1 hour".

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1-Simplyfy 6x -4y +3x+8y 2-Solve 3(x+6)-4=6 x +2X?

ivanzaharov [21]

Given:

1-Simplyfy 6x -4y +3x+8y

2-Solve 3(x+6)-4=6 x +2

Required:

To simplify the given equation

Explanation:

$\begin{gathered} 6x-4y+3x+8y \\ \\ group\text{ like terms} \\ \\ =6x+3x-4y+8y \\ \\ Add\text{ similar elements:} \\ \\ =9x-4y+8y \\ \\ Add\text{ similar elements} \\ \\ =9x+4y \end{gathered}$ $\begin{gathered} 3\left(x+6\right)-4=6x+2x \\ \\ Add\text{ similar elements} \\ \\ 3\left(x+6\right)-4=8x \\ \\ expand \\ \\ 3x+14=8x \\ \\ subtract\text{ 14 from both sides} \\ \\ 3x+14-14=8x-14 \\ \\ 3x=8x-14 \\ \\ subtract\text{ 8x from both sides} \\ \\ 3x-8x=8x-14-8x \\ \\ -5x=-14 \\ \\ =divide\text{ both side by 5} \\ \\ \frac{-5x}{-5}=\frac{-14}{-5} \\ \\ x=\frac{14}{5} \end{gathered}$

Required answer: