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SAT Math Practice Question #22885 - SATify | SATify
#22885
algebra
systems
medium
120 sec
If
a
,
b
, and
c
are positive with
ab
=
30
,
a
c
=
40
, and
b
c
=
48
, then
a
+
b
+
c
is
A.
17
B.
18
C.
19
D.
20
E.
21
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