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sashaice [31]
3 years ago
14

PLEASE ANSWER ASASP!!!!!! 4x + 10 = 30 what is x?

Mathematics
1 answer:
sveticcg [70]3 years ago
4 0

Answer:

x=5

Step-by-step explanation:

4x+10=30

     -10   -10 on both sides

4x=20

Divide 4 on both sides

20/4=5

✨Hope this helps!!✨

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larisa86 [58]

Answer:

P(57 < X < 69) = 0.1513

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

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\mu = 45, \sigma = 14

Find P(57 < X < 69):

This is the pvalue of Z when X = 69 subtracted by the pvalue of Z when X = 57. So

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