Jen picked 3/4 of a gallon of strawberries in half an hour . if she keeps picking strawberries at the same rate, how many gallons will she have picked in 2 hours

3 gallons of strawberry will collected by Jen in 2 hours.

Solution:

Jen picked of a gallon of strawberries in half an hour

Therefore,

Therefore, for one hour she picks up,

Multiply both sides of above equation by 2

She keeps picking strawberries at the same rate

To find: Gallons will she have picked in 2 hours

Gallons picked in 2 hour = 2 x gallons picked in 1 hour

Thus 3 gallons of strawberry will collected by Jen in 2 hours.

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;