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haleysmith8608
12.10.2019 •
Mathematics
17.4 is 25% of what number? a. 4.35 b. 52.2 c. 69.6 d. 34.8
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Ответ:
is = 17.4
% = 25
of = x
now we sub
17.4 / x = 25/100
since this is a proportion, we cross multiply
(25)(x) = (17.4)(100)
25x = 1740
x = 1740/25
x = 69.6 <=== ur answer
Ответ:
They basically like gave out everything. You just gotta substitute the values of x & y in the equation, k?
3x + 3y
3(2) + 3(-7)
6 - 21
= -15.
Yea, so u get -15 as ur answer. Hope that'll help ya~~