A box containing oranges weighs 60kg. The empty box weighs 7.5kg. If the average weight of an orange is 75g, how many oranges are there in the box?​

700 oranges

Step-by-step explanation: mass of box is reduced first.

Mass of oranges is 60 kg -7.5 kg = 52.5 kg

Mass or oranges is divided by mass of one orange 75 g = 0.075 kg.

52.5 kg/0.075 kg= 700

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;