Mrdwarf7163
22.04.2021 •
Mathematics
Help on Hmw pls its kinda hard tho. So help me students
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Ответ:
a)
cross multiply.
(25)(2) = (10)(5)
50 = 50; this is true
b)
cross multiply.
(3)(10) = (4)(8)
30 = 32; this is not true
c)
cross multiply.
(2)(12) = (8)(3)
24 = 24; this is true
d)
cross multiply.
(3)(20) = (4)(15)
60 = 60; this is true
a, c, and d are proportions.