If x + 10 = 70, what is x?
Α. 40
B. 50
C. 60
D. 70
E. 80

C.60

x + 10 = 70

x = 70 -10

x =60

×+10=70

you take 10 to the other side and it'll change signs ..as it was positive it will be negative then you simply say

×=70-10

×=60

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;