The function f(x)=125(0.9)x models the population of a species of fly in millions after x years.How does the average rate of change between years 11 and 15 compare to the average rate of change between years 1 and 5?The average rate of change between years 11 and 15 is about 13 the rate between years 1 and 5.The average rate of change between years 11 and 15 is about 3 times the rate between years 1 and 5.The average rate of change between years 11 and 15 is about 12 the rate between years 1 and 5 .The average rate of change between years 11 and 15 is about 2 times the rate between years 1 and 5 .

Question
solved
general 11 months ago 9289

Mark, Jessica, and Nate each downloaded music from the same website. Mark downloaded 10 songs in total consisting of pop, rock, and hip hop. Jessica downloaded five times as many pop songs, twice as many rock, and three times as many hip hop songs as Mark. She downloaded 28 songs total. If Nate downloaded 20 songs total with three times as many pop songs, three times as many rock songs, and the same number of hip hop songs as Mark, how many songs of each type did Mark download? (1 point)

Question
solved
general 11 months ago 9697

x + 6y = 2 4x - 3y = 10 Pick the first step to solving this system of equations using the addition method.Add the equation first to get: 5x + 3y = 12 and then solve for x.Add -6y to both sides of the equation to isolate the x variable in the top equation.Multiply the top equation by 4 thus eliminating the x variable when the equations are added together.Multiply the bottom equation by 2 thus eliminating the y variable when the equations are added together.

Question
solved
general 11 months ago 3339