Question

An astronaut visited mars. his weight on earth was 180 pounds, and his weight on mars was only 72 pounds. he removed a rock with a weight of 16 pounds on mars. what is the weight of the rock on earth? a. 1.4 pounds c. 6.4 pounds b. 4 pounds d. 40 pounds

Answers

  1. Answer: d. 40 pounds
    Step-by-step explanation: let e equal the number of pounds weigh on Earth and m equal the number of pounds weighs on Mars.
    so
    72m=180e
    1m= 72m/72
    e= 180/72 = 2.5
    1m=2.5e
    16m=1 x16
    e= 16 x 2.5
    e= 40
    so therefore, 16m=40e
    I hope this helps
     

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