A roofer requires 15 hours to shingle a roof, while an apprentice requires 21 hours. Write
an...
Mathematics, 08.04.2020 19:09, mazolethrin9632
A roofer requires 15 hours to shingle a roof, while an apprentice requires 21 hours. Write
an equation that can be used to find the time in hours, t, it would take to shingle the roof if
both worked together. Solve the equation.
Answers: 1
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