A proportional relationship is described by the equation
... y = k·x
The point (x, y) = (0, 0) is <em>always</em> a solution to this equation.
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In short, if the relationship is proportional, its graph will go through the origin. If the graph does not go through the origin, the relationship is not proportional.
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Note that this is true if the domain includes the origin. You can have y = kx <em>for x > 10 </em>and the graph will <em>not</em> go through the origin because the function is <em>not defined</em> there.
Answer:
it should be C.188.4
Step-by-step explanation:
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Answer:
8 days
Step-by-step explanation:
We are told in the question:
Carlos has 4/5 of a tank of fuel in his car. He uses 1/10 of a tank per day.
How many days will his fuel last?
1/10 of fuel = 1 day
4/5 of fuel = x
Cross Multiply
1/10 × x = 4/5 × 1
x = 4/5 / 1/10
x = 4/5 ÷ 1/10
x = 4/5 × 10/1
x = 8 days
His fuel lasts for 8 days
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