A typical house in the United States uses about (10,900 kilowatt-hour) of electricity per year. 1 TWh ( terawatt-hour) = 1x106 GWh (gigawatt-hour) = 1x109 KWh (kilowatt-hour). (c) One recent cost analysis report indicates that electricity from hydroelectric power can be produced for about $0.05 per KWh , while electricity from conventional coal-fired power plants can be produced for an average of about $0.11 per KWh . Calculate the percent change in the cost of electricity for a typical house resulting from a switch between conventional coal-fired power plants to hydroelectric power. Show your work.

Due to a freak snowstorm that lasted an entire week, students had a packet of 24 math worksheets to finish. by friday, peter had done 56 of the worksheets, tony had completed 11/12 and natasha had 21/24 finished. who had the most worksheets finished? the least? justify your answer by explaining how you were able to compare the fractions. there were 24 books on the summer reading list. susan has read 6 5 of the books on the list. tom has read 12 11 of the books on the list. vicky has read 24 21 of the books on the list. which list correctly compares the fractions of books on the summer reading list that susan, tom, and vicky have read?

Select the statement that is not true about the hubble telescope: a. it orbits above the earth, avoiding the light distortion caused by our atmosphere. b. it is mounted high on a hawaiian mountaintop to provide stable images. c. it has allowed scientists to see the formation of far-away stars and solar systems, leadin some certainty about the history of our own solar system. d. it has documented the destruction of far-away stars and galaxies, leading to some certa the theories of the life cycles of stars.

Aphysical education teacher lets students read material in a workbook and then complete worksheets on the material. to what type of thinker would this assessment most likely appeal? analytical exploratory structured relational