Twice a number is 48 less than 4 times a number. find the number
1 answer:
Answer:
x = 24
Step-by-step explanation:
1. First, let's translate the statement into an equation.
- Twice a number means 2x
- is means equal =
- 48 less than 4 times a number means 4x - 48
- 2x = 4x - 48
2. (solving)
Step 1: Subtract 4x from both sides.
Step 2: Divide both sides by -2.
Step 3: Check if solution is correct.
Therefore, x = 24.
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The "sample" with "mean absolute deviation" indicate about a sample mean absolute deviation is being used as an estimator of the mean absolute deviation of a population
- Mean of the sample MAD=3.3
- Population MAD =6.4
Generally, The MAD measures the average dispersion around the mean of a given data collection.
In conclusion, for the corresponding same to mean
the sample mean absolute deviation
7,7 ↔ 0
7,21 ↔ 7
7,22 ↔ 7.5
21,7 ↔ 7
21,21 ↔ 0
21,22 ↔ 0.5
22,7 ↔ 7.5
Therefore
- Mean of the sample MAD=3.3
- Population MAD =6.4
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