Vlad spent 20 minutes on his history homework and then completely solved x math problems that each took 2 minutes to complete. What is the equation that can be used to find the value of y, the total time that Vlad spent on his homework, and what are the constraints on the values of x and y?
y=2x+20; x is any integer greater than or equal to 0, and y is an integer greater than or equal to 20.
y=2x+20; x is any real number greater than or equal to 0, and y is any real number greater than or equal to 20.
y=20x+2; x is any integer greater than or equal to 0, and y is an integer greater than or equal to 20.
y=20x +2; x is any real number greater than or equal to 0, and y is any real number greater than or equal to 20.
The answer is B
think you so much
its A
The correct equation that can be used to find the value of y, the total time that Vlad spent on his homework, is y = 2x + 20.
In this equation, x represents the number of math problems Vlad solved and each math problem takes 2 minutes to complete. The term 2x represents the time Vlad spent on solving the math problems. The term 20 represents the 20 minutes Vlad spent on his history homework.
As for the constraints on the values of x and y, we can determine them based on the given information.
x represents the number of math problems Vlad solved, and since each math problem takes 2 minutes to complete, x has to be a positive integer (greater than or equal to 0). This constraint ensures that x accurately represents the number of math problems Vlad solved, and it cannot be a negative number or a fraction.
y represents the total time Vlad spent on his homework, including both the history homework and solving the math problems. Since Vlad spent 20 minutes on his history homework, y must be greater than or equal to 20. This ensures that y accurately represents the total time Vlad spent on his homework and accounts for the minimum time of 20 minutes spent on history homework alone.
Therefore, the correct option is: y = 2x + 20; x is any integer greater than or equal to 0, and y is an integer greater than or equal to 20.
20+2x
so now pick the right one.