4 oranges at Juicy Deals grocery store cost $6. For the price of $15 you can buy 10 oranges. True or false: The relationship

2 answers:

7 0

Hi! The answer is true because if you divide 6/4 you get 1.5 so 1.5 X 4 is 6 so you know that is proportional and 15/10 is 1.5 so you know that is proportional as well.

1.5 X 4 = 6
1.5 X 10 = 15

Since they both equal 1.5 after you divide them you know it’s proportional. I hope this helped, Goodluck :)

musickatia [10]3 years ago

3 0

Answer:

the answer is true.

4/6

10/15

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A set of city temperatures in April are normally distributed with a mean of 19.7 degrees Celsius and a standard deviation of 2 d

Sati [7]

Answer:

19.77% of average city temperatures are higher than that of Cairo

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:

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

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

$\mu = 19.7, \sigma = 2$