Betty paints twice as fast as Dan. Working together, Dan and Betty can paint 2,400 square feet in 4 hours. Another employee, Sue, joined their painting team. Working together, Dan, Betty, and Sue can paint 3,600 square feet in 3 hours. If Sue works alone, how many square feet can she paint in 4 hours and 27 minutes?
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.
Betty paints twice as fast as Dan. Working together, Dan and Betty can paint 2,400 square feet in 4 hours. Another employee, Sue, joined their painting team. Working together, Dan, Betty, and Sue can paint 3,600 square feet in 3 hours. If Sue works alone, how many square feet can she paint in 4 hours and 27 minutes?
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