Which of the following has a constant of proportionality of 2? A) y = 2x B) y = x + 2 C) 2y = x D) y + 2 = 2x
2 answers:
The correct answer is A.
You have direct variation if x and y are modeled by the equation
In this case, m is the constant of proportionality. So, if the constant has to be 2, the equation becomes
A side note: Actually, option C has a constant of proportionality of two as well, except the roles of x and y are interchanged. I chose option A because usually you want the y = mx form, but the names of the variables are obviously meaningless.
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Answer:
The total minutes he spend on his homework are 50 minutes.
Step-by-step explanation:
<em>It is given that Jordan spent 22% of his time for homework on maths.</em>
<em>It is also given that he spent 11 minutes of time on maths homework.</em>
The above two statements are equal.
Let the total time for homework be "x".
Thus, the equation can be written as,
Thus the total minutes he spend on his homework are 50 minutes.