11.
8(6) = 4(10)
48 = 40 (not equal)
12.
12(5) = 4(15)
60 = 60 (equal)
13.
18(28) = 21n
504 = 21n
n = 24
14.
12(64) = 16n
768 = 16n
n = 48
15. 6:4 or 3:2
16.
5(14) = 7x
70 = 7x
x = 10
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Answers & Comments
11.
8(6) = 4(10)
48 = 40 (not equal)
12.
12(5) = 4(15)
60 = 60 (equal)
13.
18(28) = 21n
504 = 21n
n = 24
14.
12(64) = 16n
768 = 16n
n = 48
15. 6:4 or 3:2
16.
5(14) = 7x
70 = 7x
x = 10