Wilson can paint the walls of his room in 4 hours by himself when working at a constant rate. Wilson's older brother Adam can paint the same walls by himself in 2 hours when working at a constant rate. How long would it take for Wilson and Adam to paint the walls of Wilson's room together at their current rates? Select one answer A. 3 hours B. 2 1/2 hours C. 1 1/2 hours
Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
Linear Functions
A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
Wilson can paint the walls of his room in 4 hours by himself when working at a constant rate. Wilson's older brother Adam can paint the same walls by himself in 2 hours when working at a constant rate. How long would it take for Wilson and Adam to paint the walls of Wilson's room together at their current rates? Select one answer
A. 3 hours
B. 2 1/2 hours
C. 1 1/2 hours
D. 1 1/3 hours
E. 1 1/6 hours
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