5) tim loves reading fiction, and he can read 100 pages in 2 hours. how many pages he can read in 48 minutes?

Step-by-step explanation:

Remember that

1 hour=60 minutes

so

2 hours=120 minutes

Using proportion

40 pages

Step-by-step explanation:

Lets change hours to minutes

1 hours = 60 minutes

2 hours = 120 minutes

We will use ratios to solve

100 pages         x pages

=

120 minutes       48 minutes

Using cross products

100 * 48 = 120 * x

Divide each side by 120

100 *48/120 = 120x/120

40 =x

Tim can read 40 pages

answer: there are 453.592 grams in a pound.

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;