Carlos bought 6 1 /2 pounds of bananas for $5.20 If you spent $15.60, how many pounds have you bought please work out the problem.

Explanation: 6 1/2 pounds = $5.20 so 15.60 would give you 19 1/2.

How I got the $5.20 x 3 = $15.60    SO    61/2 x 3 = 19 1/2.

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(3x-8) or (3x+8)

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;