SOLUTION: Sam drives his car at a constant speed. He travels a distance (d) of 15 miles with 12 of a gallon of gas (g). Write an equation in the form of d=rg that represents the relation

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Question 1093768: Sam drives his car at a constant speed. He travels a distance (d) of 15 miles with 12 of a gallon of gas (g). Write an equation in the form of d=rg that represents the relationship between distance (d) and the number of gallons of gas (g), where r is the constant of proportionality.


Found 2 solutions by Alan3354, ikleyn:
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
Sam drives his car at a constant speed. He travels a distance (d) of 15 miles with 12 of a gallon of gas (g). Write an equation in the form of d=rg that represents the relationship between distance (d) and the number of gallons of gas (g), where r is the constant of proportionality.
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?????
d = r*g
Answer by ikleyn(52915)   (Show Source): You can put this solution on YOUR website!
.
If the equation has the form

d = r*g   with the constant  r,      (1)

then

r =  =  =  = 1.25.


So, the constant r =  = 1.25.


Then the equation (1) takes the form

d = ,    or    d = 1.25*g.


It is the equation the question asks for,


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