Evaluate b – 2 a – c for a = –7, b = 3, and c = –7.
2 answers:
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Answer:
<em>Worker B needs 9 days to finish the rest of the work</em>
Step-by-step explanation:
<u>Proportions</u>
Worker A finishes a project on his own in 12 days and worker B does the same in 16 days.
Worker A does 1/12 of the project in one day and worker B does 1/16 of the project in one day. When working together, they do
After 3 days they have completed:
parts of the project, this means it still remains:
parts of the project and it is done by B alone. Since B does per day, he now takes
days to complete the project.
Worker B needs 9 days to finish the rest of the work