Mathematics, 26.02.2021 06:40, niele123
An electronics store had a special sale on two different models of calculators. The more high-tech model sold for $33.02 and the older model sold for $18.55. All together, 28 calculators were sold. Total sales came out to $736.45. Which system of equations can be used to determine how many high-tech models were sold, x, and how many older models were sold, y?
Answers: 3
Mathematics, 22.06.2019 04:40, robert7248
4. jake needs to score in the top 10% in order to earn a physical fitness certificate. the class mean is 78 and the standard deviation is 5.5. what raw score does he need? z value for top 10% =1.282 how do i get the z value? what is the equation for this? raw score =mean+z*sd = 78+1.282*5.5 = 85.051
Answers: 3
An electronics store had a special sale on two different models of calculators. The more high-tech m...
Mathematics, 24.06.2021 19:10
Mathematics, 24.06.2021 19:10