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vlabodo [156]
3 years ago
13

A survey was conducted to find the possible relationship between age groups and the most favored of three book genres. The data

is represented
In the frequency table.
Motivational
Biographies
Do-It-Yourself
40
Total
263
110
21-30 years
113
44
95
219
268
80
92
69
31-40 years
41-50 years
Total
107
153
285
312
750
To the nearest tenth, what percentage of people were in the 41 - 50 age group and favored the Do-It-Yourself books?
Mathematics
1 answer:
Ahat [919]3 years ago
8 0

Answer:C

Step-by-step explanation:

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If 2x + 5 = 8x, then 12x = ?A.5B.10C.15D.20
butalik [34]
<h2>Answer:</h2>10.\text{ Option B is correct}

<h2>Explanation:</h2>

Given the equation expressed as:

2x+5=8x

First, we need to calculate the value of "x" from the given expression.

Step 1: Given the equation 2x + 5 = 8x

Step 2: Subtract 5 from both sides:

\begin{gathered} 2x+5-5=8x-5 \\ 2x+\cancel{5}-\cancel{5}=8x-5 \\ 2x=8x-5 \end{gathered}

Step 3: Subtract 8x from both sides

\begin{gathered} 2x-8x=8x-8x-5 \\ -6x=\cancel{8x}-\cancel{8x}-5 \\ -6x=-5 \end{gathered}

Step 4: Divide both sides by -6

\begin{gathered} \frac{-6x}{-6}=\frac{-5}{-6} \\ x=\frac{5}{6} \end{gathered}

Step 5: Get the value of 12x. Substitute x = 5/6 into the expression to have:

\begin{gathered} 12x=12(\frac{5}{6}) \\ 12x=\cancel{12}^2(\frac{5}{\cancel{6}^1}) \\ 12x=2\times5 \\ 12x=10 \end{gathered}

Therefore the value of 12x is 10

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HELPPPPP PLEWSE POINT SLOPE FORMULA
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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

The fraction of the juice Alisa drank was

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--------------------

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and this fraction can be simplified by inverting the divisor (3/2 liters) and multiplying instead:

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  8       3

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