Respuesta :
The work rate for the associate is 5.3 hours.
What is a system of equations?
A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.
Given; Jane can paint the office by herself in 7 hours.
with an associate, she can paint the office in 3 hours.
The combined work rate is 3 hours per office.
WE need to find the work rate for the associate
Let the expression for the work rate be;
1/A+1/B= 1/T
1/7+1/B=1/3
1/B=1/3-1/7
1/B= 8-4/21
1/B= 4/21
B= 21/4
B=5.3 hours
Therefore, the work rate for the associate is 5.3 hours.
Learn more about equations here;
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