Jason can paint a room in 6 hours. lorissa can paint a room in only 3 hours. which of the following can be used to determine the amount of time it would take for jason and lorissa to paint a room together? a-1 over 6 plus 1 over 3 equals 1 over x b-1 over x plus 1 over 3 equals 1 over 6 c-1 over 6 plus 1 over x equals 1 over 3 d-1 over 3 plus 1 over 6 equals x over 9

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.