exam Maths Puzzle Numerical Ability

I have a somewhat more complicated problem with linear equations.

The problem relates to a measurement task, which implies that the results are not precise but cluttered with st

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exam Other Question

Please try and solve both parts to this problem, with the strps for a better understanding. Thank you so much. --Janina

Consider the function {{{ f(x)=x^2+4x+1}}}}.

a) Find It takes Terry 2 hours longer to do a certain job than it takes Tom. They worked together for 3 hours; then Tom left and Terry finished the job in 1 hour. How long would it take each of them to do the job alone?