A survey was taken among college students to find out how many hours they spend studying each week. The data were approximately normally distributed with a mean of 22 hours and a standard deviation of 5 hours. What percent of students studied less than 7 hours a week?

Ily begins solving the equation 4(x – 1) – x = 3(x + 5) – 11. her work is shown below. 4(x – 1) – x = 3(x + 5) – 11 4x – 4 – x = 3x + 15 – 11 3x – 4 = 3x + 4 how can her partial solution be interpreted?

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula , what is the temperature in celsius corresponding to r degrees rankine? a. 9/5(c - 273) b. 9/5(c + 273) c. 5/9( c - 273) d. 5/9( c + 273)