Answer:
6 boys have brown hair.
Step-by-step explanation:
boys in the class.
boys have brown hair.
The answer is there pls just show your work on how to do it
2 answers:
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Answer:
82.62
Step-by-step explanation:
Mean score (μ) = 80
Standard deviation (σ) = 5
The 70th percentile of a normal distribution has an equivalent z-score of roughly 0.525.
For any given score, X, the z-score can be determined by:
For z = 0.525:
A raw score of approximately 82.62 corresponds to the 70th percentile.
Answer:
Only one solution.
Step-by-step explanation:
1) Collect like terms.
2) Simplify to
.
3) Expand by distributing terms.
4) Collect like terms.
5) Simplify.
Therefore, the answer is x + 39 and there is only one solution possible.