Alondra says that (12 + 31) × 5 is equivalent to 12 + 31 × 5 because of the associative property.
2 answers:
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The mean length (rounded to 2 DP) of these 8 people's index finger is 5.83
<h3>What is the mean length (rounded to 2 DP) of these 8 people's index finger?</h3>The given parameters are:
<u>Children</u>
Mean = 5.6 cm
Frequency = 5
<u>Adult</u>
Mean = 6.2 cm
Frequency = 3
The mean length of these 8 people's index finger is calculated as:
So, we have
Mean = (5.6 * 5 + 6.2 * 3)/(5 + 3)
Evaluate
Mean = 5.83
Hence, the mean length (rounded to 2 DP) of these 8 people's index finger is 5.83
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Answer:
Least possible value of b is 9.
Step-by-step explanation:
It is given that and b is an odd integer.
We need to find the least possible value of b.
We have,
Isolate variable terms.
Divide both sides by 3.
Since b>8 and b an odd integer, therefore the possible values of b are 9, 11, 13, 15, ... .
Hence, the least possible value of b is 9.