5) The cost of fuel delivered to your door is directly proportional to the mass received. When 250 kg is delivered, it costs $47.50. (a) Find out the constant of proportionality.
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Step-by-step explanation:
amount of fuel delivered=250kg
mass received=$47.50
constant of proportionality
amount of fuel. 250
------------------- = ------
mass received. 47.50
= 5.26
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