91.Mrs. Smith’s 1st period class of 28 students averaged 84%
on the last test. Her
2nd period class of 24 students averaged 86% on the same test. What
must her
3rd period class of 32 students average so that all of the students
in her three classes
have a combined average of 80%?
93.If 5
a-
b-c=36 and
b=c=1/2
a, what is the value of
a?
94.A bus stopped at Main Street and boarded passengers,
after which half of its seats were
filled. At its next stop, at Oak Street, 2 passengers got off and 7
got on, and then 60% of
the seats were filled. How many seats are there on the bus?
95. Three fractions
are inserted between 1/4 and 1/2 so that the five
fractions form an arithmetic
sequence. What is the sum of
these three new fractions? Express your answer as a
common fraction.
96.In the equation 123 × 4A6 = 5B548, what is the value of A
× B, the product of the two
missing digits?
I NEED THE WORK WITH THE ANSWERS PLEASE!!!!!!!!!!!!!!!!!!!!
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