The ratio of an object's weight on Earth to its weight on Neptune is 5 : 7. How much would a person who weighs 150 pounds on Earth weigh on Neptune?
A. 107 1/7 pounds
B. 170 pounds
C. 210 pounds
D. 750 pounds
WE : WN = 5 : 7 150 : x = 5 : 7 or: [tex] \frac{150}{x}= \frac{5}{7} [/tex] We will cross multiply and then divide:[tex]x= \frac{150*7}{5} =210[/tex] Answer: C) 210 pounds.
