Explain what the equation -4h = -14 represents What value of h makes the equation true
2 answers:
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Answer:
T = 3.5 hours
Step-by-step explanation:
this is a rate problem.
an experienced surveyor takes 7 hours to survey a roadbed
an apprentice surveyor takes 9 hours to survey a roadbed
the rate of the experienced surveyor =
the rate of the apprentice surveyor =
if the two work together ,
T =
T = 3.5 hours