John and 2 friends are going out for pizza for lunch. they split one pizza and 3 large drinks. the pizza cost $14.00. after using a $7.00 gift certificate they spend a total of $12.10. write an equation to model this situation, and find the cost of one large drink.

One drink costs $ d.

3 drinks cost $ 3d.

3d + 14.00 - 7.00 = 12.10

3d + 7.00 =12.10

3d = 5.10

d = 1.70

Answer D. 3d + 14.00 - 7.00 = 12.10; d = 1.70.

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;