So its asking you to find the gravity on earth relative to the gravity on mars.
Set up an equation to figure out the difference between the two gravities
x=.38
I don't know what constant of proportionality is in this context but a ball on mars would weigh .38 the amount that it does on earth.
An example would be
8/12 - 4/12 = 4/12
8/12 + 4/12 = 12/12 = 1
Another example would be
13/24 - 9/24 = 4/24 = 1/6
13/24 + 9/24 = 22/24 = 11/12
Lastly, another example is:
4/6 - 3/6 = 1/6
4/6 + 3/6 = 7/6 = 1 1/6
X- independent variable
y- dependent variable
Answer:
1. The sum of two times a number (x) and -2 is at least 8 is first
2. Seven subtracted from 4 times a number (x) is more than 13 is second
3. Four added to 3 times a number (x) is less than 19 is third
4. Two less than 3/2 of a number (x) is no more than 5 1/2 is last
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