Mathematics, 21.01.2021 22:40 Mattixwillard
Parker runs a farm stand that sells strawberries and peaches. Each pound of strawberries sells for $1 and each pound of peaches sells for $1.50. Parker sold 3 times as many pounds of strawberries as pounds of peaches and he made $54 altogether. Graphically solve a system of equations in order to determine the number of pounds of strawberries sold,
x
,
x, and the number of pounds of peaches sold,
y
y.
Answers: 1
Mathematics, 21.06.2019 19:10
At a kentucky friend chicken, a survey showed 2/3 of all people preferred skinless chicken over the regular chicken. if 2,400 people responded to the survey, how many people preferred regular chicken?
Answers: 1
Mathematics, 21.06.2019 19:40
Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
Answers: 3
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