Find the solution to each number sentence below: (1) - 10 + 15 =

(2) 28 + (-29) =

(3) -40.5 + (-0.5) =

(4) 50 - (- 5) = (5) 100 - 255 =
(Hint: take away a negative means adding the opposite)

1) 5

2) -1

3) - 41

4) 55

5) -155

the k side

step-by-step explanation:

plese mark mde brainliest!

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;