I need not only the answers to these questions, but also, how they are to be figured out. Thanks!
1. If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together?
2 hours and 24 minutes, 3 hours and 12 minutes, 3 hours and 44 minutes, 4 hours and 10 minutes or 4 hours and 33 minutes.
2.A student receives his grade report from a local community college, but the GPA is smudged. He took the following classes: a 2 hour credit art, a 3 hour credit history, a 4 hour credit science course, a 3 hour credit mathematics course, and a 1 hour science lab. He received a “B” in the art class, an “A” in the history class, a “C” in the science class, a “B” in the mathematics class, and an “A” in the science lab. What was his GPA if the letter grades are based on a 4 point scale? (A=4, B=3, C=2, D=1, F=0)
2.7, 2.8, 3.0, 3.1 or 3.2.
Thanks again!
2007-01-13
17:35:33
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7 answers
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asked by
Anonymous
in
Mathematics