A person weighs 100 pounds on Earth would weigh 37 7/10 pounds on Mars. If m represents a person's weight in pounds, on Mars, which proportion could you solve to determine the weight on Mars of a person who weighs 160 2/5 on earth?

Answer:
The proportion we can use is:
m/ 160 2/5 = 37 7/10 /100
The weight on Mars of a person is 60.4708
Step-by-step explanation:
If a person weighs 100 pounds on earth would weigh 37 7/10 pounds on mars.
We can write it as:
37 7/10 / 100
Now m represents a person's weight on Mars if a person weighs 160 2/5 on earth.
Write it as:
m / 160 2/5
In proportion we can write it as:
37 7/10 /100 = m/ 160 2/5
OR
m/ 160 2/5 = 37 7/10 /100
Now to solve for m first change the whole fractions into improper fraction.
m/802/5 = 377/10/100
m/ 160.4 = 37.7/100
Now perform cross multiplication:
100m = 37.7 * 160.4
100m = 6047.08
Divide both sides by 100
100m/100= 6047.08/100
m = 60.4708
The weight on Mars of a person is 60.4708...
Answer: Option A
Step-by-step explanation:
We call m the weight of a person on Mars.
We know that a person weighs 100 pounds on Earth would weigh 37 7/10 pounds on Mars.
Then we use this data as a conversion factor. [tex]\frac{37\frac{7}{10}\ pounds}{100\ pounds}[/tex]
We seek to determine the weight on Mars of a person who weighs 160 2/5 on earth
Then we solve the following operation:
[tex]weigh\ on\ Earth *\frac{weigh\ on\ Mars}{weigh\ on\ Earth}=m[/tex]
This is:
[tex]160\frac{2}{5} *\frac{37\frac{7}{10}\ pounds}{100\ pounds}=m[/tex]
Now multiply by [tex]\frac{1}{160\frac{2}{5}}[/tex] on both sides of equality
[tex]\frac{m}{160\frac{2}{5}}=\frac{37\frac{7}{10}\ pounds}{100\ pounds}\\\\[/tex]
The answer is the option A