The ratio of milk to water in a container is 5:1 by volume. If the total volume of the mixture is 9 litres, find the volume of water in it ​

1500 cm3

Step-by-step explanation:

let the ratio of 5:1 be 5x and x respectively

volume of water is 9 litre i.e 9000cm3

then

5x + x = 9000

x= 1500

step-by-step explanation:

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;