James wants to compete in the international speed texting competition next year where participants compete on text speed and accuracy. james’s current text speed is 2 characters per second. james has found that his texting speed increases at a rate of 1⁄2 a character per second for each month that he practices.

what is james’s new texting speed if he practices for only 1 month?
b. what is james’s new texting speed if he practices for 2 months?
c. what is his new texting speed if he practices for 3 months?
d. write an algebraic equation that gives james’s texting speed s for m months of
practice.

A. 2.5 b. 3 c. 3.5 d. 2 + .5m = CPS ( character per second)

Step-by-step explanation:

8 2/3 is the answer

step-by-step explanation: just use a calculator

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;