Philip walked 3 2/3 miles on Saturday and 2 8/9 miles on Sunday. How far did Philip walk on Saturday and sunday combined?

4 5/9 miles [around 4.6 miles]

Step-by-step explanation:

3 2/3 + 8/9 = 3 6/9 + 8/9 = 33/9 + 8/9 = 41/9 = 4 5/9 ≈ 4.6 [nearest tenth].

a b/c = (ac + b) / b.

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;