Question

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?

Answer 1

Y=20+2X and you cant do a negative number of math problems, so X must be greater than negative 1, and therefore Y must be greater than 19.

Answer 2

y=2x+20; x is an integer greater than or equal to 0, and y is an integer greater than or equal to 20. Just took the quiz

Explanation: