I solved it for y
d. the population of california was approximately two times the population of florida.
california's population was 4 x 10^7= 40,000,000
florida's population was 2 x 10^7= 20,000,000
so therefore califirnia's population was approximately two times the population of florida.
i hope this
let w represent lizette's walking speed. then her running speed is w+6. the relationship between speed, time, and distance is
distance = speed × time
lizette ran for 1.5 hours, then walked for 3 hours. her total distance is
(w+6)·1.5 + w·3 = 18
4.5w + 9 = 18 . . . simplify
4.5w = 9 . . . . . subtract 9
w = 2 . . . . . . divide by 4.5
lizette's walking speed is 2 mph; her running speed is 8 mph.