Answer:
x=2
y=8
Workup in photo below. Good luck.
Answer:
3 3/4 miles
Step-by-step explanation:
work:
1 1/4 + 2 1/2 = 3 3/4
Answer:
The null and alternative hypotheses are:


Under the null hypothesis, the test statistic is:




Now, we have to find the right tailed z critical value at 0.10 significance level. Using the standard normal table, we have:

Since the test statistic is greater than the z critical value, we therefore, reject the null hypothesis and conclude that there is sufficient evidence to support the claim that the university students weigh more than the population.
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In order to determine the cost of each pencil we have to divide the total cost for the package of pencils by the number of pencils contained
For the 4 pencils box:
Cost per pencil = Total cost/number of pencils
Cost per pencil = 6/4 = 1.5
Similarly, for the 5 pencils package:
Cost per pencil = 7/5 = 1.4
As you can see, the $7 package is better to buy, because each pencil costs $1.4, then, option A is the correct answer